Design & Build Services in Elmbridge, Surrey & SW London
- 30 years experience
- 10-year structural guarantee
- Fixed fee quotation
- 5% Scheduling discount
- 500+ Successful projects
WHY CHOOSE US?
One accountable team for house extensions, loft conversions and renovations
Managed from drawings and approvals to the finished build.
Clear scope. One accountable team. Fixed-price clarity.
Ready to price your home improvement project?
Tell us about your extension, loft conversion, refurbishment or design & build project. We’ll arrange a site visit, review the scope and explain the best route forward.
Serving East Molesey, Elmbridge, Surrey and nearby South West London.
Why choose HWP Design & Build?
Fixed-price clarity, one-team accountability and trusted local experience
Choosing a builder is about trust, communication and certainty. Our process is designed to reduce surprises before construction begins, keep responsibility clear and give homeowners a smoother route from early ideas to finished build.
Fixed-price quotation clarity
We build quotations around an agreed scope and specification, helping you understand what is included before work starts.
One accountable team
Design, structure, approvals, build, finishing and aftercare are coordinated through one managed route, reducing confusion and handover gaps.
30+ years’ experience
Our team brings decades of hands-on experience across domestic construction, house extensions, loft conversions and refurbishments.
Local Elmbridge knowledge
Based in East Molesey, we understand the property types, planning sensitivities, access constraints and homeowner priorities common across Elmbridge and Surrey.
Planning and compliance support
We help you understand planning permission, permitted development, structural requirements, Building Regulations, Building Control and party wall considerations.
Aftercare and guarantees
We support the project beyond completion with snagging, aftercare and clear information about workmanship, protection and guarantees.
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Design and Build Service FAQs
We provide a complete residential design & build service including house extensions, loft conversions, renovations/refurbishments, new builds, planning support, Building Regulations and full project management.
Yes—one team can handle survey, design/drawings, structural coordination, approvals and the build, so you have a single point of accountability throughout.
Absolutely. Some projects may be permitted development, but we’ll advise early and can manage applications where required. See Planning Permission.
In most cases, yes. We design and build to meet Building Regulations (structure, insulation, fire safety, drainage, etc.) and coordinate with Building Control. See Building Regulations.
We aim to provide clear, fixed-price quotes based on an agreed scope and specification—helping you budget confidently and avoid surprises as the build progresses.
Yes. If the work triggers the Party Wall etc. Act, we can guide you on the process and help you coordinate the right support. See Party Wall support.
Yes—our project management covers programme planning, site coordination, quality control and regular updates, so the build runs smoothly and safely.
We work across Elmbridge and the surrounding Surrey / SW London area (including East Molesey and nearby neighbourhoods). Start here: East Molesey.
Often, yes. We plan access, protection and sequencing to reduce disruption, and we’ll advise honestly if temporary decanting is safer for certain phases.
Yes—after completion we run through snagging and provide aftercare support to protect the finish and long-term performance of your home improvements. See Aftercare.