Abinger Construction

Basement Conversion in Westcott

Trusted by Surrey homeowners, working alongside selected bathroom showrooms and designers
 

Reviews

Don't Just Take Our Word For It

All reviews
Google
Google
Houzz
Houzz
ExcellentTrustindex star 1Trustindex star 2Trustindex star 3Trustindex star 4Trustindex star 55.037 reviews
5.0Trustindex star 1Trustindex star 2Trustindex star 3Trustindex star 4Trustindex star 5
Excellent37 reviews
ExcellentGoogle star 1Google star 2Google star 3Google star 4Google star 55.05 reviews
5.0Google star 1Google star 2Google star 3Google star 4Google star 5
Excellent5 reviews
ExcellentHouzz star 1Houzz star 2Houzz star 3Houzz star 4Houzz star 55.032 reviews
5.0Houzz star 1Houzz star 2Houzz star 3Houzz star 4Houzz star 5
Excellent32 reviews
Posted on Google Google
Lynne Robb profile picture
Lynne Robb
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
+3
Our fantastic new bathroom installed by the team at Abinger Construction Ltd. Complete attention to detail, and total focus on our work from start to finish. Their Craftsmanship is second to none, they are professional and fun to work with.
Posted on Google Google
Kaye Michie profile picture
Kaye Michie
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
+2
This is the second time that I have used Tomasz and both experiences were fantastic. Always discreet - always hard working and the attention to detail was first class. I strongly recommend Tomasz. Kaye Michie
Posted on Google Google
Maddy Sparrow profile picture
Maddy Sparrow
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Great job painting all our outside window frames and doors. Tidy and efficient as always! Thank you.
Posted on Google Google
Dawn Farren profile picture
Dawn Farren
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
+6
Tomasz and Viola have done a wonderful job transforming our kitchen (both old and new cabinets) and also our lounge. Not only is their work flawless, they were also exceptionally tidy and considerate of our home. I highly recommend them.
Posted on Google Google
flo bee profile picture
flo bee
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
+1
We recently had our bathroom completely renovated by Abinger Construction and the whole process was outstanding from start to finish. Tomasz and his team were incredibly professional,organised and clearly take a great pride in their work.From the intial consultation through to completion,communication was excellent and everything was explained clearly,which gave us a lot of confidence throughout the project. The quality of workmanship is truly exceptional.the tiling,plumbing ,carpentry and finishing details were all carried out to a very high standard,and final result exceeded our expectations.Our new bathroom looks absolutely beautiful and feels like something you would see in luxury hotel. What really stood out was how clean,respectful and reliable the team were..They arrived on time every day,kept the house tidy and made the whole process far less stressful than w eexpected a renovation to be. If you are looking for company that delivers high quality ,attention to details and honest communication ,we would highly recommend Abinger Construction.We wouldn't hesitate to use them again for future projects.
Posted on Houzz Houzz
Jenni M profile picture
Jenni M
Houzz star 1Houzz star 2Houzz star 3Houzz star 4Houzz star 5Trustindex verifies that the original source of the review is Houzz.
Tomasz and his team were excellent and we would highly recommend them. They were highly efficient, friendly and hard working. From the quote through to end of the project they communicated clearly, came up with great troubleshooting ideas and provided regular updates. We will be sure to use them again for future works on the house.
Posted on Houzz Houzz
Simon C profile picture
Simon C
Houzz star 1Houzz star 2Houzz star 3Houzz star 4Houzz star 5Trustindex verifies that the original source of the review is Houzz.
I used Abinger Construction (following a recommendation) for the recent refurbishment of my bathroom. I was very happy with the service they provided from the beginning until the end of the project. The quote was very competitive and Tomasz was very helpful in advising what was possible and what was not and generally in managing expectations. The work was completed to the schedule advised. Tomasz and his team were professional and organised throughout. I am delighted with the quality of the finish. I would have no hesitation in recommending Abinger Construction.
Posted on Houzz Houzz
Ellie profile picture
Ellie
Houzz star 1Houzz star 2Houzz star 3Houzz star 4Houzz star 5Trustindex verifies that the original source of the review is Houzz.
I’ve worked with Tomasz on 3 projects now. We’ve been very impressed with his professionalism, knowledge and quality workmanship. Would highly recommend.
Posted on Houzz Houzz
User profile picture
User
Houzz star 1Houzz star 2Houzz star 3Houzz star 4Houzz star 5Trustindex verifies that the original source of the review is Houzz.
Tomasz and his team have worked on a number of projects for us. They are always completed in a timely way, on budget and to a high standard. Tomasz has great ideas and vision when needed to help make your plans into reality.
Posted on Houzz Houzz
Refurbishment of shower room. profile picture
Refurbishment of shower room.
Houzz star 1Houzz star 2Houzz star 3Houzz star 4Houzz star 5Trustindex verifies that the original source of the review is Houzz.
Tomasz always arrives on time, does any work just as specified and clears up afterwards leaving everything neat and tidy.
Posted on Houzz Houzz
Chris Tucker profile picture
Chris Tucker
Houzz star 1Houzz star 2Houzz star 3Houzz star 4Houzz star 5Trustindex verifies that the original source of the review is Houzz.
We couldn’t have be happier to have Tomasz in our home replacing our shower. Fantastic from start to finish , very professional, exceptionally clean and tidy. 5 star’s, the shower looks amazing and we would have him back in a flash! Chris and Laura
Posted on Houzz Houzz
ECA studio profile picture
ECA studio
Houzz star 1Houzz star 2Houzz star 3Houzz star 4Houzz star 5Trustindex verifies that the original source of the review is Houzz.
Tomasz is very organised, his team are skilled, and the workmanship is of a very high standard. I worked with him to deliver one of my projects and have also viewed several of his past projects, all finished beautifully. What really stands out is his honesty when pricing: he allows for what’s needed from the start, so you don’t get unexpected extras for small things along the way. As an architect, I find this makes the whole process much easier and far less stressful. Highly recommended.”
Posted on Houzz Houzz
Oscar York profile picture
Oscar York
Houzz star 1Houzz star 2Houzz star 3Houzz star 4Houzz star 5Trustindex verifies that the original source of the review is Houzz.
Tomasz and his team were amazing as usual! They helped us through the process of deciding the design of the bathroom and then were there every day, bang on 8am busy working away. The bathroom has blown us all away in the house and was done in 2.5 weeks to an amazing standard. Thanks to him and his team so much!
Posted on Houzz Houzz
Gail Bottomley profile picture
Gail Bottomley
Houzz star 1Houzz star 2Houzz star 3Houzz star 4Houzz star 5Trustindex verifies that the original source of the review is Houzz.
I was very pleased with the work done on the rendering of the back of the house. It is a large tall house and the job was done very well. The scaffolder was efficient. The builders kept me informed throughout the job with photos taken of the high parts of the job. I was very pleased with the job that was done.
Posted on Houzz Houzz
HU-924830215 profile picture
HU-924830215
Houzz star 1Houzz star 2Houzz star 3Houzz star 4Houzz star 5Trustindex verifies that the original source of the review is Houzz.
Thomasz and Wiola completely redecorated our sitting room, including stripping an entire staircase. It was a pleasure to have them in the house. They were extremely hard working and so clean and tidy. I would highly recommend them. They also built and painted a bespoke television/storage unit which looks very smart.
Verified by Trustindex
Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more

Under some of Westcott’s older houses sits a damp cellar holding boxes and little else, while the family upstairs has run out of room. Planning is tight here, so a basement conversion that turns that space into a warm, dry room deserves a serious look.

Key Takeaways

  • Which basement route suits your Westcott house, cellar or full excavation
  • What drives the cost of a basement and how it’s itemised
  • Why waterproofing junctions matter more on Westcott’s older masonry
  • The four build stages, run by one project manager
  • How Surrey Hills and Green Belt status affects your planning

We’re a Surrey building company, and you’ll have one project manager from first visit to final walkthrough. We work alongside your architect, take responsibility for the build and finish, and back it with a 10-year workmanship guarantee, subject to its terms. It’s the same approach we bring to every home refurbishment in Westcott.

Ask Abinger Construction Ltd for a free quote on your Westcott basement while there’s time to plan it properly.

Kew Basement - 23

Basement Conversion Types

Most homes in Westcott weren’t built with a basement in mind. It’s a village of detached houses and bungalows, with cottages, terraces and Victorian houses mixed in. Some have an old cellar. Most don’t.

That’s what decides the route, long before anyone picks a floor finish. The job takes one of three broad shapes, and you’ll know which is yours once the space has been properly looked at:

  • Cellar conversion. There’s already a cellar with workable headroom, so it’s tanked, insulated, lit and finished as a proper room.
  • Lowering an existing cellar. The floor’s dug down to gain height, which usually means underpinning the walls that sit above it.
  • Full excavation. There’s no cellar at all, so new lower-ground space is created beneath the house, often with light wells to bring daylight down.

If you live in one of the older houses along Westcott Street, there may well be a cellar already. A newer detached house or bungalow usually won’t have one, so it’s a different conversation from day one. We’re comfortable with both.

Ask Abinger Construction Ltd to look at the cellar or ground beneath your Westcott home and put a free, itemised Basement Conversion proposal in writing.

Quick Quote OnlineCall Now: 01306 252266

Kew Basement - 24

Basement Conversion Costs for Westcott Homes

We don’t put a figure on a basement before we’ve seen it. It’s the honest answer. Two houses on Furlong Road can look alike from the pavement and still need very different work below them.

What moves the cost is fairly predictable, though, and you’ll see each item set out in our proposal:

  • Which route you’re on: converting a cellar is far less work than digging one out.
  • Underpinning, and how much of the house it’s needed under.
  • The waterproofing system that’s specified, and the drainage that goes with it.
  • Light wells, steelwork and any services that’ll need moving, from drains to the incoming water supply.
  • Access for spoil and deliveries, which matters on a village plot where the side access can be tight.

Each of those lands in a transparent written proposal, with a breakdown of costs, timelines and permits. It’s the document you’ll hold us to, and it’s written so you can see where the money goes. That’s how we try to keep anything found below ground from turning into a surprise on the invoice.

A lot of lower-ground rooms end up with a shower room in them, and that’s the centre of our work. If you need a basement conversion in Westcott or a bathroom installation in Westcott, we cover the whole area.

Kew Basement - 18

Waterproofing and Damp Protection

This is the part we’d least like you to compromise on. In a wetroom, the tanking and the falls are the whole job, and bathrooms and wetrooms are the centre of what we do. A basement asks for the same discipline across every wall and floor.

Water below ground doesn’t give up. So the junctions matter most: wall to floor, around every pipe and cable that passes through, and wherever new work meets old. A membrane that’s perfect in the middle and loose at a corner won’t keep a room dry.

Westcott has its share of older masonry. The Church of the Holy Trinity was designed in 1851, and the village’s Victorian houses come from the same period. Those walls don’t behave like modern blockwork, and the waterproofing detail has to respect that.

Will it feel like a cellar once it’s finished? It shouldn’t. Insulation, ventilation and heating are planned alongside the waterproofing from the start, so the room’s warm, dry and fit to live in. Underfloor heating’s something we already fit in bathrooms, and it suits a lower-ground floor well.

Kew Basement - 29

Project Process and Build Stages

You’ll deal with one person throughout. A dedicated project manager is your single point of contact, from the first visit to the final walkthrough. The work runs in four stages:

  • Consultation and design. We look at the house and the space, and we’ll usually work from your architect’s or designer’s drawings.
  • Written proposal. Costs, timelines and permits, broken down so there’s nothing hidden.
  • Construction. Your project manager coordinates the subcontractors and schedules the inspections as the build goes.
  • Inspection and walkthrough. We check the finished space, then walk it with you before we call it done.

You’ll probably be living upstairs while it happens. That’s normal for us. The site’s protected, the house is kept tidy, and you’re told what’s coming next rather than finding out from the noise. On a close like Parsonage Close, where neighbours sit on every side, skips and deliveries are planned with them in mind too.

If you’ve been searching for basement builders close to home in Westcott, we work right across the village and the rest of Surrey. It’s a semi-rural spot, but the A25 runs straight through to Dorking, so getting materials in and spoil out is simple to plan.

Ask Abinger Construction Ltd to look at the cellar or ground beneath your Westcott home and put a free, itemised Basement Conversion proposal in writing.

Quick Quote OnlineCall Now: 01306 252266

Kew Basement - 07

Planning Permission and Building Regulations

Westcott sits inside the Surrey Hills National Landscape and the Metropolitan Green Belt. That means planning scrutiny here is tighter than in an unconstrained suburb, and basements are no exception. Don’t assume it’s permitted development.

The village also has pre-1800 listed thatched houses. If yours is listed, listed building consent is likely to come into it, and the heritage fabric has to be handled with real care. We’ll handle the planning applications and permits, working alongside your architect. We can’t promise the outcome, and we won’t pretend otherwise.

Building regulations apply to any new habitable room below ground. The Building Regulations 2010 cover structure, fire escape, ventilation, insulation and more, and building control will want to inspect at set points. We schedule those inspections as part of the build, so you’re not chasing them.

The structural design sits with your architect and their engineer, and we build to it. We take on a basement conversion in Westcott and a basement conversion in Dorking with the same process and the same care. Every job carries our 10-year workmanship guarantee, subject to its terms and conditions. If something’s not right, we’ll come back and put it right. So if there’s a cellar under your feet, or space you’d like to create, ask us for a free quote and we’ll come and look.

Ask Abinger Construction Ltd to look at the cellar or ground beneath your Westcott home and put a free, itemised Basement Conversion proposal in writing.

Quick Quote OnlineCall Now: 01306 252266

Table Of Contents

Ready To Start Your Next Project?

Feel Free To Contact Us

To find out more about our services please fill out the form or contact us
    EXCELLENT Houzz star 1Houzz star 2Houzz star 3Houzz star 4Houzz star 5
    32 reviews
    EXCELLENT Google star 1Google star 2Google star 3Google star 4Google star 5
    5 reviews

    Let’s discuss your new home!

    Unparalleled Craftsmanship
    Transparent Communication
    Sustainable Construction
    The Atrium Business Centre,
    4 Curtis Road, Dorking RH4 1XA

    Hosted by MJ Support for all your IT needs

    © 2026 All Rights Reserved Abinger Construction.