High-quality, fully managed design & build across Cheshire — Alderley Edge, Wilmslow, Knutsford and Warrington.
Extensions that extend the home, not the patience.
High-quality, fully managed design & build across Cheshire — Alderley Edge, Wilmslow, Knutsford and Warrington. Fully managed design & build across Cheshire and the wider North West.
One team, one quote, one timeline
Most extension horror stories start with a split project — architect here, main contractor there, structural engineer somewhere else, and nobody quite willing to own the clash when it happens on site. Our design & build package fixes that: one named project manager carries the job from the first feasibility sketch through to the building control completion certificate.
The day the scaffold goes up and the day you throw the first dinner party in the new space — same team, same accountability.
A full extension package
Every phase a household extension needs — from the first planning sketch to the final piece of skirting — delivered by one in-house team.
- Feasibility & Design — Site measure, sketch concepts and planning-ready CAD drawings — done before a single invoice is raised.
- Planning Submission — Full householder planning applications including design and access statements, plus PD notifications where eligible.
- Structural Engineering — Steels, pad foundations and wall tie-ins calculated and drawn by our consultant engineer.
- Groundworks & Foundations — Traditional strip, trenchfill or raft foundations to suit the site. Drainage, manholes and soil stacks included.
- Brick, Block & Rendered Skins — Matching brick, reclaimed brick, K-Rend, monocouche or contemporary cladding — whatever the design calls for.
- Glazing & Lantern Rooflights — Bi-fold, sliding and Crittall-style glazing, plus flat-roof lantern rooflights for big, lit-up interiors.
- Roofing & Insulation — Warm flat-roof build-ups, pitched tile roofs, lead flashings — all built to latest Part L thermal requirements.
- First & Second Fix — Joinery, electrics, plumbing, plastering, tiling and decorating — the same in-house team that started the project.
Benefits of House Extensions
How We Handle House Extensions
Consultation
An initial conversation about your project — scope, brief, budget framing, and the outcome you want.
Site Visit
We come to the property to understand the existing space, take measurements, and discuss feasibility on the ground.
Quotation
A detailed written quotation covering every element of the work, with no hidden costs.
Design & Planning
Where required, we handle architectural drawings, planning permission, and Building Regulations in-house.
Full Project Delivery
Our long-standing in-house team — supported by trusted specialist subcontractors — delivers the entire build.
Completion
Final walk-through, sign-off, and your workmanship guarantee.
Ready for House Extensions?
Get in touch for a free, no-obligation site visit and a detailed written quotation. Cheshire-led, with Greater Manchester covered for the right projects.
House Extensions FAQs
Do I need planning permission for an extension?
Many single-storey rear extensions fall under Permitted Development and don't need a full application, but there are strict size, height and boundary limits. We check this at the free site visit, and if a formal application is needed we handle the planning submission, drawings and responses to the case officer.
How much does a house extension cost?
Every extension is individually quoted — there's no fixed per-metre rate. After a free site visit we provide a fully itemised written quotation, breaking out materials, labour, prelims and contingency separately, with no hidden costs.
How long will an extension take?
Lead times typically run from several weeks to several months, depending on the scope of the work. Planning and structural drawings can add time up front — we confirm a full project timeline as part of the written quotation.
Will you manage the planning and building regs?
Yes. We work with trusted Cheshire architectural practices and a structural engineer — all submissions, drawings and building control sign-offs are managed in-house as part of the build package.
Can we stay in the house during the build?
For single-storey rear extensions, usually yes. We seal the existing rear wall until the new structure is watertight, and only do the final break-through when we're ready to finish the floor and ceiling across both spaces. For wrap-around or full-width rear extensions we'll walk through a phased plan at the site visit.
Do you provide a structural warranty?
Yes. Every project is handed over with our written workmanship guarantee. Where a structural warranty is required we arrange cover through our FMB membership, alongside manufacturer-backed warranties on windows, doors and roofing.