Yes. We provide a full design, manage, and build service, including architectural design, structural engineering, project management, construction, and certification under one contract.
One team controlling design, cost, programme and construction so projects finish properly, not “nearly done”.
Years of Experience
Successful Projects
Complete new homes, from plot and planning to final handover.
Explore new builds →
Single and double storey extensions that add space and value.
Explore extensions →
Full refurbishments managed by one team, under one contract.
Explore renovations →
Turn unused loft space into a bright bedroom or office.
Explore loft conversions →
Warm, insulated living space from a garage you rarely use.
Explore garage conversions →
Compliant HMO layouts for landlords and property investors.
Explore HMO conversions →
Bathrooms designed, supplied and fitted by our own team.
Explore bathrooms →
New kitchens planned around how your family cooks and lives.
Explore kitchens →
Reliable repairs and upkeep to keep your home in shape.
Explore repairs →Watch
How to avoid the most costly mistakes
Renovation and new build construction remain among the highest-complaint sectors in the UK. That's largely down to poor regulation, weak management and unqualified contractors.
The most common causes
Every project starts with detailed planning, feasibility checks, and cost forecasting to avoid delays, design issues, and unexpected expenses later.
All architects, engineers, and consultants are coordinated under one system to ensure compliant, buildable, and cost-efficient designs.
You receive a fully itemised scope, clear contract, staged payments, and a 10-year structural warranty — with no hidden costs or surprises.
Construction is managed through strict quality checks, organised trade sequencing, and continuous site monitoring at every stage.
All building regulations, inspections, and legal requirements are handled end to end, ensuring full compliance and peace of mind.
Flexible payment structures and finance options help maintain smooth cashflow and keep projects moving without financial strain.
Before you commit to a build, start with the right information.
| Typical Builder | J M A Group Construction Partner |
|---|---|
| Unregulated trade | Experienced construction specialists |
| No fixed scope | Fully defined scope of works |
| No warranty | 10-year structural warranty |
| Limited insurance | Fully insured |
| No quality inspections | Stage-by-stage quality control |
| Building Control issues | Full Building Regulations compliance |
| Poor scheduling | Professionally managed programme |
| Reactive problem solving | Planned risk management |
| Multiple contractors | One-stop design, manage & build |
| Short-term operator | Long-term accountable business |
Watch our projects on Instagram. See finished builds, live site visits and honest advice from our team.
Before & After: Loft Conversion
Kitchen Extension – Completed
Garden Annexe – Completed
Rear Home Extension – Completed
Construction work is regulated under UK Building Regulations, but builders themselves are not licensed or regulated, which is why professional oversight and compliance management are critical.
Yes. We provide a full design, manage, and build service, including architectural design, structural engineering, project management, construction, and certification under one contract.
Yes.
All qualifying projects include a 10-year structural warranty, providing long-term protection and peace of mind.
Yes. All works are fully insured, including public liability and employer’s liability, and delivered by experienced construction professionals.
Do you help with planning permission?
Yes. We assist with planning permission, permitted development assessments, drawings, submissions, and liaison with local planning authorities.
Yes. We offer construction finance solutions, including buy now pay later options, subject to eligibility and approval.
Do you provide fixed prices?
Yes. We issue a clear, itemised scope of works with defined payment stages to maintain transparency and cost control.
Who manages the project?
Each project is assigned a dedicated project manager responsible for programme scheduling, quality inspections, trade coordination, and communication.
Quality is managed through stage-by-stage inspections, specification checks, Building Control coordination, and documented sign-off at key milestones.
A construction partner provides structured project management, legal protection, compliance handling, warranties, and accountability not just labour.
Timeframes vary by scope, but structured planning, professional scheduling, and trade coordination significantly reduce delays compared to unmanaged builds.
You will receive Building Control completion certificates, electrical and gas certification, warranty documents, and final handover records.