House Extensions & Renovations · Herefordshire, Worcestershire & Gloucestershire Extensions and renovations.
Done with European-build quality.
Quality refurbishments and extensions across Herefordshire, Worcestershire and Gloucestershire. European materials, building-physics-aware detailing, personal oversight from Paweł Okurowski — first call to final handover.
Bread and butter — done properly.
Most projects we take on are kitchens, bathrooms, whole-house refurbishments and extensions. Passive House new build is still being scoped; this page covers the residential work we deliver now.
What differs from a standard refurbishment: airtightness and thermal-bridge detailing by default, materials bought direct from European manufacturers, and one point of contact — Paweł — from survey to handover, backed by 20+ years of construction across Europe.
Level 2 Passive House construction course at AZB, a PHI-accredited training body (2023). We think about airtightness and thermal bridges by default — not as an afterthought.
Better products, often below UK-equivalent pricing. From insulation and windows through to tiles, kitchens and bespoke furniture. See full range →
Paweł Okurowski, from first call to final handover. No call-centre, no project manager you've never met.
Costed proposals up front. Programme dates agreed before work starts. No surprises mid-project.
Poland, Germany, Spain (Mallorca), UK. The detailing standards expected on the Continent, applied to British residential work.
The full range of residential work.
Whether you're updating one room or rebuilding most of the house, we work across the full scope of UK residential construction. Energy improvement work is woven through everything — because it's our training and our European supply chain doing the heavy lifting.
Kitchens
Full kitchen design and installation, with European cabinetry, worktops and appliances. Supply-only also available.
Bathrooms
Full bathroom refurbishments with European tiles, fittings, taps and sanitaryware. Wet rooms and family bathrooms.
Full house refurbs
Whole-house renovation programmes. Phased works or vacant-property programmes. Single coordinated package.
Single-storey extensions
Rear, side and wrap-around extensions. Permitted-development scope and full planning routes.
Two-storey extensions
Larger extensions delivering significant additional floor area. Coordination with our UK architect partnership for planning and Building Regs drawings.
Loft & garage conversions
Adding usable floor area without changing the building footprint. Dormers, hip-to-gable, integral garage conversions.
Energy improvements
Part L upgrade works, insulation (EWI, IWI, loft), window replacement, door replacement, airtightness improvements.
External works
Decking, balustrades, retaining walls, garden lighting, hard landscaping. As delivered in Herefordshire 2024.
Materials supply only
If you have your own team, we can supply the materials package only. See the materials page →
Herefordshire, the borders, and an honest hour's radius.
Build-and-install work is regional. We work in the counties and areas we can comfortably reach from Hereford and oversee personally — without quality dropping because of distance.
Materials supply runs UK-wide regardless of region — see the materials page.
Typical project ranges.
Indicative only — every project is costed properly after a site visit. These ranges help you work out whether what you have in mind is in roughly the right ballpark before you spend time on a detailed proposal.
Wide range depending on spec, layout changes and bespoke joinery.
Driven by footprint, glazing spec and groundworks complexity.
Larger schemes; varies significantly with finishes and structural scope.
Driven by dormer scope and en-suite inclusion.
Strip-out, structural changes, M&E, fabric, finishes, kitchen, bathrooms.
EWI, IWI, windows, doors, airtightness, MVHR — phased or all at once.
Ranges in 2026 GBP. Exclude VAT and professional fees unless agreed. Always confirmed after site visit.
Five clear stages.
Site visit
Free initial site visit. We talk through what you want and what's feasible.
Costed proposal
A clear written proposal with scope, materials spec and programme dates.
Materials sourcing
European supply chain order placed and consolidated for delivery to site.
Site works
Build runs against the agreed programme, with Paweł personally on-site.
Handover
Snagging, documentation, warranty pack. Walkthrough with you on completion.
Book a site visit.
Tell us about your home and what you'd like to change. The first conversation is free and obligation-free.
Before you add that glazing
We Are Building the Next Retrofit Programme
Approved Document O does not cover extensions or conservatories on existing homes — which is exactly where the biggest glazing goes. What to ask before you sign.
Building ScienceHow to Stop a House Overheating
Bi-folds, lanterns and garden rooms without external shading are the fastest way to make a comfortable house unbearable in July. What works on an existing house: external shading, night ventilation and mass.
CostsDeep Retrofit Cost UK 2026
Element-by-element 2026 pricing with three worked case studies, plus the soft costs the £/m² headlines leave out.
Extension and renovation questions
What's included when APMBuild delivers a full extension or whole-house renovation.
What's included in a full extension or renovation?
An APMBuild full extension or renovation typically covers coordination of the architect's drawings and the engineer's structural calculations (both by independent professionals), planning and Building Control submissions, demolition, foundations, structure, fabric (insulation, airtightness, glazing), MVHR, M&E, finishes, kitchens, bathrooms and bespoke joinery — delivered as a single A–Z contract from our Hereford base.
Can you handle planning and Building Control submissions?
Yes. APMBuild coordinates planning applications, Building Regulations approval and Party Wall notices; the drawings and calculations behind them come from an independent architect and engineer. Where PAS 2035 applies, an accredited Retrofit Coordinator (a third party) leads it, and APMBuild follows its documentation discipline. This coordination is included by default in our design-build A–Z service across Herefordshire and the surrounding counties.
How long does a typical extension take?
A typical single-storey rear extension with APMBuild runs 12–20 weeks on site once planning and Building Control are approved. Two-storey extensions or wraparound projects run 16–28 weeks. Energy-efficient detailing adds little to programme but a great deal to performance.
Do you do energy-efficient extensions?
Yes — every APMBuild extension is built to a high fabric standard by default, with triple glazing, continuous insulation, airtightness detailing and MVHR available as standard upgrades. This pairs an extension with whole-house energy improvement rather than worsening the existing performance.
What's the warranty on extensions?
APMBuild provides a 24-month workmanship warranty on all extensions and renovations, alongside manufacturer warranties on installed products (windows, MVHR, boilers, kitchens). Full handover documentation including airtightness and commissioning data is supplied on completion.