Copperwheat Conversions

Copperwheat Conversions Copperwheat Conversions, specialise in House extensions and Loft conversions Our team caters to each individual project’s specific needs to ensure excellence.

We believe a face to face home visit is the best way for us to meet and discuss your ideas as it is very important for us to understand exactly what you require for your building project. In our experience a collaborative approach coupled with great communication helps to make a project run smoothly and also ensures everyone has a positive experience. An initial face to face visit also gives you t

he chance to get to know us personally before agreeing to take us on for a job. We guarantee that all work undertaken will come in at the price agreed before work commences. We understand that our clients have a budget in mind for their projects and we always strive to work within that budget, never spending more than has been initially agreed at the beginning of the project. We promise to deliver high-quality products and workmanship, ensuring that whatever your project, it will be delivered to the best standards. Our mission at Copperwheat conversions is simple: to provide high-quality services in a timely manner. We hope you’ll find what you’re looking for. For more information or general inquiries, please feel free to get in touch today to arrange your free consultation and quote.

15/07/2026

Another structural alteration completed and handed back ready for the next trade.

On this project we removed the existing load-bearing walls, installed the new structural steelwork, rebuilt the supporting masonry, and left everything fully supported and ready for the engineer’s final sign-off.

We arranged the structural engineer, steel fabrication, delivery, installation, waste removal and Building Control coordination, giving the client and follow-on trades a straightforward, hassle-free process from start to finish.

The site has been cleaned down, worktops and floors wiped over, and the driveway left tidy, ready for the next phase of the project.

Whether you’re a homeowner, architect, kitchen fitter, bathroom installer or another trade needing structural alterations carried out properly, we can take care of the entire process.

📍 Surrey, Hampshire & South West London

Get in touch if you have a project you’d like to discuss.

08/07/2026

This is the bit you’ll never see once the sliding doors are in 👀

We’re cutting the internal blockwork back and forming a rebate in the rear of the facing brick so the new sliders and ground-floor windows can sit properly into the opening.

Then the cavity gets closed with marine ply, the cavity insulation continues through, and insulated plasterboard goes on internally.

It’s slow, dusty, awkward work… but these are the details that make the finished job look clean, tight and properly thought through.

08/06/2026

This is what a proper wet room looks like before the tiles go on.

Everyone sees the finished bathroom.

But this is the part that decides whether it actually lasts.

This room has had the full Wedi system installed properly — Wedi boards, mechanical fixings with washers, 610 adhesive between the boards, sealed joints, banding, tanking, and vapour protection through the steam area.

Because this isn’t just a normal shower.

It’s a wet room and steam shower, which means water, heat and vapour are constantly trying to find the weakest point.

A missed joint.
A poor corner detail.
A gap behind a fitting.
The wrong system in the wrong place.

That’s where bathrooms fail.

Before any tiles go on, every detail has to be thought through — wall-mounted taps, lighting positions, LED details, pe*******ons, corners, board joints and the full tanking build-up.

It’s not the glamorous bit.

It’s not the bit most people notice.

But it’s the bit that protects everything behind the finished bathroom.

Tiles make it look finished.

The preparation underneath is what makes it last.

22/05/2026

Not even finished yet, but already looking incredible.

This utility room is currently acting as the temporary kitchen while the main works continue, but we’ve still detailed it properly with birch ply lining, clean finishes and practical layout.

The doors and windows aren’t even in yet, but you can already see the level this project is heading towards.

Behind the scenes, the airtight detailing is now complete in this area too — the bit most people never see, but one of the most important parts of the build.

12/05/2026

This is the detail behind a high-performance house.

In this wet room, we’ve fitted ply infill boards between the joists and taped every joint with Tescon No.1 to help create a continuous airtight layer.

We’ve then carefully sealed around all the pipes and cables passing through, because airtightness is only as good as the weakest gap.

Over the remaining first-floor overhang, we’ll be running Intello membrane, then taking that up the wall, across the ceiling, and tying it back into the airtight layer in the master bedroom on the other side.

It takes more time, but this is how you create a high-performance house.

03/04/2026

This job is a proper step up in detail for us.

Exposed glulam joists, BB grade ply finish, and a full airtightness strategy running through the build.

We’re taping every joist pe*******on, sealing junctions properly, and using thermal break materials like Marmox to reduce cold bridging — not just ticking boxes, but actually thinking about how the building performs long-term.

Flat roof window going in, aluminium capping to protect exposed elements, and everything tied together so it not only looks sharp but works properly behind the scenes.

We’re not claiming to be airtightness specialists — but we’re learning, pushing standards, and taking what we’re doing here into every future job.

Always improving. Always building it properly.

Because it’s not just about how it looks when it’s finished — it’s about how it performs for the next 30+ years.

03/04/2026

This one’s a bit different to a standard build.

We’ve got exposed glulam joists coming through internally, so everything you don’t normally see… suddenly matters.

Every joist pe*******on is being fully sealed.
Airtight tapes, air tight paint, and careful detailing throughout to stop uncontrolled air leakage.

On top of that, we’re running BB grade birch ply as the structural deck, with aluminium capping externally to protect and finish the exposed elements properly.

We’re also introducing thermal break detailing using Marmox to reduce cold bridging — small details, but they make a big difference over time.

Flat roof window going in as well, so all of this needs to tie together properly — structure, insulation, and airtightness all working as one system.

We’re not claiming to be airtightness specialists — but on projects like this, you learn fast, you adapt, and you raise your standards.

That’s the goal on every job:
Do it properly.
Make it last.
Keep getting better.

01/04/2026

Most people just see the finished roof…
But what matters is what’s underneath it.

On this one we:
Retained the original tiles to keep the character of the house
Replaced the old felt with a breathable membrane
Installed a ridge ventilation system to prevent moisture build-up
Added two new Velux roof windows
Installed a new steel ridge beam to properly support the structure
From the outside, it looks like a tidy roof job.
Underneath, it’s been completely rebuilt the right way.

This is the difference between making it look done…
and building it properly so it lasts another 50 years.



Address

9 Sunna Gardens
Sunbury-on-Thames
TW165EE

Telephone

+447843577502

Website

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