Public evidence profile

Baseline Build and Renovate Ltd

BuilderLondon4.9219 reviews · 3 independent public sources
Review quality
Caution noted
Credentials & registries
Which? Trusted Traders
Companies House
Active incorporated business

Review caution: one or more review signals need a closer check.

No Trust Score yet

  • Rated 4.9 from 219 reviews across 2 review sources
  • 1 credential shown

Worth checking: TrustMark

Based on rating, review volume, independent sources and credential evidence. Evidence context, not a guarantee of workmanship.

Credentials and associations

Credentials and memberships

1

These credentials and memberships are attributed to named public sources. Check the source before relying on them.

Companies House registration

Active incorporated business

Active

Baseline Build and Renovate Ltd is linked to a Companies House entry. This shows the business registration, not evidence of workmanship or service quality.

Legal nameBaseline Build and Renovate Ltd
Company number11470688
Incorporated
Registered activityHome building & construction
Run by2 directors (longest-serving director appointed in 2018)
Official checkOn the public register

Why this helps you judge trust: this trader is linked to a registered company with named people who are legally accountable for it, on an official register anyone can check, a layer of accountability an unregistered trader doesn't offer. Around 8 years on the register also points to an established business rather than a brand-new one.

Review quality check

One or more review signals need a manual check

Review caution

Some review signals are flagged for a closer manual check. That doesn't prove fake reviews or any wrongdoing.

Assessed 8 Aug 2026
Repeated review text

1 exact review-text pattern found across sources

Review text appears to be reused across more than one source. This is a bounded caution for manual review, not proof of fake reviews or wrongdoing.
From customer reviews

What customers consistently say

Recurring themes from 150 customer reviews on Checkatrade.

Clear communicationQuoted from 2 reviews

Calum made sure we were kept informed at every stage · Checkatrade, 26 Mar 2026

Excellent communications · Checkatrade, 18 Mar 2025

Reliable and punctualQuoted from 2 reviews

The team were reliable · Checkatrade, 18 Mar 2025

The team were reliable, prompt · Checkatrade, 6 Jun 2024

Source-listed gallery

Photos listed on Which? Trusted Traders

21 photos

These sources do not label every image as completed work. The gallery may include projects, people, logos or certificates, so it does not count as completed-work evidence.

Dulwich bathroom install, SE21 house extension

SE26 Lower sydenham bedroom refurb, house renovation

BR3 Beckenham House renovation

Bromley loft conversion, BR3 Beckenham House renovation

SE23 Kithchen renovation, Forest hill

SE23 House extension, Forest hill

Dulwich loft conversion, SE21 house renovation

From Which? Trusted Traders

Opening hours

The hours this business publishes online, handy for knowing when to call. Confirm before you set off.

Monday–Thursday
9am–5pm
Reviews · public evidence

What customers say

These reviews are published independently on the named public sources below, not testimonials this business chose to show. We bring them together and link each one back to where it appeared, so you can open the source and read it yourself.

4.9out of 5
219 reviews in public evidence6 reviews in the last 12 monthsReviewed on public review sources since 2013Most recent review Cross-checked across 2 review sources
Customers often mention
  • Friendly & politeMentioned in 29% of reviews we've read
  • PunctualMentioned in 26% of reviews we've read
Where these reviews are published
  • Checkatrade191 reviews · 4.9 avg
  • Which? Trusted Traders28 reviews · 4.9 avg

Highlights

Baseline did a full renovation of my house, including a rear single storey extension. Calum and his team were fantastic throughout the project. Work was carried out to a high standard and everyone at Baseline clearly has pride in their work. Calum made sure we were kept informed at every stage, making suggestions to improve the project/save money and sent photos whenever we were unable to be there. Options were explained clearly and Calum listened to what we wanted and was able to make it happen. Baseline made the project as stress-free as possible and we would definitely use them again.

CustomerCheckatrade5.0 rating

I would happily recommend Baseline. Calum and the team carried out a full bathroom replacement to a high standard. From the outset, Calum was great to work with and understood our needs, and the work was completed successfully. Thanks!

AnonymousCheckatrade5.0 rating

Baseline renovated our Victorian terrace kitchen with speed and precision. They predicted our needs, kept us informed and provided a high quality service. They kept to time and budget. Our new kitchen is everything we hoped for. We will reach out to Baseline again for any future projects.

CustomerCheckatrade5.0 rating

Detailed reviews

These are the individual reviews we hold for Baseline Build and Renovate Ltd, including the highlights above. The 219 headline total is the review volume reported across public review sources.

Customer in Greater London
Customer recommends this business

Garage conversion

Baseline completed all works to a very high standard and on schedule. Any extra works needed were necessary and the price was clearly communicated to us. Callum was very patient when we needed time to make decisions on things. Our new floors look amazing.

Work completed:

Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Greater London
Customer recommends this business

A great team to work with

Baseline did a full renovation of my house, including a rear single storey extension. This included a full rewire, replaster and replumb, fitting a bathroom and WC and a kitchen Calum and his team were fantastic throughout the project. Work was carried out to a high standard and everyone at Baseline clearly has pride in their work. Calum made sure we were kept informed at every stage, making suggestions to improve the project/save money and sent photos whenever we were unable to be there. Options were explained clearly and Calum listened to what we wanted and was able to make it happen. We had some delays to the project that were our out of our control but Baseline was understanding and were able to be flexible to ensure work could move along as much as possible. Lauren in the office was also super helpful with organisation. Baseline made the project as stress-free as possible and we would definitely use them again.

Work completed:

Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Greater London
Customer recommends this business

Great work on kitchen and shower room

Contacted Baseline in October 2025 and arranged site visit, Callum identified crumbling wall as damp between kitchen and shower room. Also large crack which appeared in kitchen wall. Estimate received but in meantime noticed crack appearing between extension and main house. Once again Callum visited and we agreed on helix rods, filling in of surface cracks, a few new slates on roof and repaint of extension. Accepted both estimates and agreed work could commence in January. The two workers sent were courteous, friendly, hard workers who ensured our kitchen and bathroom floors were well protected, cleaned up every evening. repainting delayed a couple of days due to weather. I have no hesitation in recommending Baseline. Estimates were itemised and cost reasonable.

Work completed:

Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer4.3 / 5 ·

"Contacted Baseline in October 2025 arranged site visit, Callum identified crumbling wall as damp between kitchen /shower room. Also large crack which appeared in kitchen wall. Estimate received but in meantime noticed crack appearing between extension and main house Callum visited and we agreed on helix rods, filling in of surface cracks, a few new slates on roof, repaint of extension. Accepted both estimates work to commence in January. The 2 workers were courteous, friendly, hard workers who ensured our kitchen and bathroom floors were well protected . Estimates itemised, reasonable cost

Checkatrade
Customer in Greater London
Customer recommends this business

Professional, proactive, timely renovation

Baseline renovated our Victorian terrace kitchen with speed and precision. They predicted our needs, kept us informed, and provided a high-quality service. They kept to time and budget. Our new kitchen is everything we hoped for. We will reach out to Baseline again for any future projects.

Work completed:

Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Read the other 8 detailed reviews on this page
Customer in Greater London
Customer recommends this business

Reliable, professional and helpful

We had our flat completely renovated by Baseline. The team were reliable and always did the things they said they would. There were no hidden costs. Excellent communications, so we always knew what was going on, what our options were and what decisions we needed to make. Very helpful, friendly and offering ideas and suggestions to get the best possible outcome. They project managed everything. Professional job across a range of trades - electrics, heating, plastering, carpentry, flooring, decorating. Completed on time. We would highly recommend them and we will be using them again for future work.

Work completed:

Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Greater London
Customer recommends this business

Bathroom renovation

We chose Baseline Ltd to do our bathroom renovation because they offered the approach that we wanted. Calum managed the entire project for us but at the same time we were free to choose the equipment etc. that we wanted with his guidance. The estimate for the work was transparent. We did not need to pay for design as such but were offered plenty of helpful advice, good ideas and problem-solving as part of the standard service. We are very happy with the result, the quality of the work and also with the process. Lauren in the office deserves a mention for her efficiency and responsiveness. We would certainly use Baseline again and highly recommend them.

Work completed:

Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Greater London
Customer recommends this business

Brilliant quality of work, done quickly and with plenty of great suggestions.

Calum and his team were brilliant. They managed to turn a space that needed a tonne of work into a pristine kitchen and bathroom. They've completely changed the character of my flat - I would happily have them come back and do more work for me.

Work completed:

Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Greater London
Customer recommends this business

Home improvement

I approached my home improvement project with some trepidation as I have had problems with builders in the past. However, I found Calum of Baseline Builders on the Federation of Master Builders website, as well as being on the Which Trusted Trader scheme. The work I required was to remove part of a weight-bearing wall, put in a steel support beam, fit a new kitchen and outside tap, fit new flooring, and decorate. I discussed my project with him, went to see some of his work, and decided to proceed. I did not regret it. He was efficient and business-like. The workmen who carried out the work did so to a high standard, within budget, and to my specifications. Calum made some useful suggestions as to how I could improve some of the things I wanted to do. He dealt with Building control and with electrical certificates. All the manuals for my new appliances were kept for me. Snagging was minimal. The only problem was that the plumber turned off the heating and was unable to turn it on again. However, I am on a communal heating system and the heating engineers were able to rectify the problem when they came to the estate on a routine visit. Overall, I am very happy with the work and with my improved home.

Work completed:

Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer4.9 / 5 ·

Could not be more pleased with the professionalism of the team. Genti and Calum were always available for consultation & kept informed as the work proceeded. Despite encountering a few unexpected difficulties, and carrying out major structural works involving open plan kitchen diner and converting an old bathroom to a wetroom, their team remained focused and amiable. For us, most importantly the work has been completed on time and to the highest standard throughout.

Checkatrade
Customer5.0 / 5 ·
Verified by Checkatrade

I've used Baseline a few times and would recommend them. Callum and his team are great to work with. They listened to us and guided us throughout the building process. They had great ideas; suggested suppliers and encouraged collaboration. Communication and aftercare was good and since they operate mainly within the SE of London, they were often working nearby. I have learnt so much from working with Baseline and would definitely do so again.

Checkatrade
Customer in Greater London
Customer recommends this business

Would use this company again

We bought a house in need of far more renovation than we realised. After a long process, we came across Baseline Build and Renovate. They renovated our kitchen, our bathroom, installed a "loo-tility" (utility- room/bathroom) and converted our basement into a one bedroomed flat. Communication and aftercare was good and since they operate mainly within the SE of London, they were often working nearby. Callum and his team are great to work with. They listened to us and guided us through the building process. When I talk to other people who went through similar building works, they were a lot more stressed than I was and I think this was thanks to the Baseline Team. They suggested suppliers - good ones - and the results were high-end but cost-effective. They had great ideas and encouraged collaboration. They answered any questions I had about the works with clarity and kindness. I have learnt so much thanks to working them and I would recommend them to anyone. I found them to be effective, reliable and trustworthy and would definitely use them again.

Work completed:

Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Greater London
Customer recommends this business

Ground floor extension completed

Calum and the Baseline team completed our ground floor extension before the expected finish date and on budget. The team worked hard throughout, even through some terrible weather, which we appreciated. We're delighted with the outcome and the standard they delivered. We certainly plan to get them back for future improvements.

Work completed:

Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Local context

Rated 4.9, in line with the local average for builders in London

Across 2616 builders in London, the typical rating is 4.9 out of 5. We compare against the same businesses a homeowner would find searching for this trade locally.

Sources

Where this information comes from

3 named public sources

Everything on this page is drawn from named public sources. Where a source provides a public link, you can open the original and dig deeper.

Check dates vary by source. Where we hold a date, the check shows it.

About

Bathrooms in London.

Services they list

Accessible KitchensBasement / Cellar ConversionsBathroom DesignerBathroom FitterBathroom ShowroomBathroom Supply & FitBrick / Concrete Structural RepairsCar PortsCladdingConcrete GaragesDemolitionDisabled Bathrooms / Showers

Listed on public sources or the business's own website; check directly that they cover your job before you book.

Areas served

London

The areas they list covering on a public directory; confirm they cover your address before you book.

What this business says about itself
From their own website

What this business says about itself

See their work: Photo gallery (opens in new tab) · Houzz (opens in new tab) · Instagram (opens in new tab) · Facebook (opens in new tab)

Accreditations it displays. Confirm each is current on the official register before you hire:

These are statements the business makes on its own website, worth confirming in writing (and on the official registers) before you hire, not independently verified by us.

Independent checks

About this business

How long they've really been tradingThe earliest independent record of them trading is 2013, so at least 13 years. They appear in 2 separate independent sources.
First public review2013Company registered2018
A real, registered businessWe cross-checked Companies House: this business is officially registered for work that matches the builder services it advertises - independent confirmation it's a genuine business set up to do this kind of work, not just a directory entry.
Your own checks

What to check before you hire

Worth checking yourself
Always confirm credentials and quotes with the business directly before hiring.
Verify at the sourceCheck them yourself

This trade isn't licensed in the UK, so anyone can set up. TrustMark is the only Government-endorsed quality scheme for work in and around the home - check whether they're registered, or find a TrustMark-registered business.

Check the TrustMark register
Never pay a large deposit up front. Agree a staged payment schedule tied to completed milestones, and hold a small retention until snagging is done.
Get it in writing: an itemised quote with scope, materials, start and finish dates, and how any changes (variations) will be priced.
Be wary of a cash-only price or pressure to start tomorrow. Both are red flags for an unaccountable job.

Want an extra legitimacy check? Run the Cowboy Checker on Baseline Build and Renovate Ltd before you contact them.

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Good to know

Common questions about Baseline Build and Renovate Ltd

Is Baseline Build and Renovate Ltd a legitimate business?

As of 16 Aug 2026, we hold 219 independent reviews across Checkatrade and Which? Trusted Traders for this business, and Companies House lists (no. 11470688) as active, checked 20 Jul 2026. This is independent public evidence, not a guarantee of workmanship. If anything here is out of date, the business can request a correction.

What do customers say about Baseline Build and Renovate Ltd?

Baseline Build and Renovate Ltd has 219 public reviews, averaging 4.9 out of 5, gathered across 2 review sources. You can read the individual reviews and where each came from in the reviews section above.

How do I know Baseline Build and Renovate Ltd's reviews are genuine?

Baseline Build and Renovate Ltd's 219 public reviews are gathered and cross-checked across 2 review sources. Reviews spread across several review sources are harder to fake than a single polished page. MyTrustedTraders brings this public evidence together with no ads and no paid placement: we show where every review came from rather than selling rankings, so you can weigh the evidence for yourself.

Has Baseline Build and Renovate Ltd had recent public reviews?

Baseline Build and Renovate Ltd has 6 public reviews dated within the last 12 months. That shows their review history includes recent feedback; it does not prove current availability, so confirm capacity before hiring.

Is Baseline Build and Renovate Ltd qualified and accredited?

We hold 1 independently sourced credential for Baseline Build and Renovate Ltd, including Which? Trusted Traders. Each is attributed to the body that issued it in the credentials section. For example, Which? Trusted Traders is Which? Trusted Trader: an endorsement from the consumer champion Which?, given to traders who pass its assessment process.

Is Baseline Build and Renovate Ltd a registered business?

Baseline Build and Renovate Ltd is a registered business on Companies House (company number 11470688), incorporated 18 Jul 2018, listed as active. This confirms the legal registration of the business, not evidence of workmanship or service quality.

Is Baseline Build and Renovate Ltd insured?

They state on their own website that all work carried out by Baseline is insured.. This is the business's own statement on their website, not something we have independently checked. Ask to see a current certificate before work starts.

What does Baseline Build and Renovate Ltd specialise in?

Baseline Build and Renovate Ltd lists specialist services including Accessible Kitchens, Basement / Cellar Conversions, Bathroom Designer, Bathroom Fitter, Bathroom Showroom, Bathroom Supply & Fit. If your job is one of these, look for it in their listed services or ask them to confirm for your project.

What areas does Baseline Build and Renovate Ltd cover?

They state on their own website that they cover London, South East London. This is the business's own statement on their website, not something we have independently checked. Confirm they cover your postcode before booking.

How long has Baseline Build and Renovate Ltd been trading?

Baseline Build and Renovate Ltd has been reviewed on public sources since 2013.