Trusted Builders
in Portsmouth
- Fully vetted and reviewed Portsmouth builders
- Extensions, loft conversions, kitchens, bathrooms, roofing, driveways & solar installation
- Free quotes — no commitment required
- Work guaranteed, fully insured tradespeople
What Our Portsmouth Builders Do
All services →Single-storey, double-storey, rear and side extensions built to your design.
Velux, dormer, hip-to-gable and mansard loft conversions in Portsmouth.
Full kitchen redesign, supply and fit by experienced Portsmouth kitchen fitters.
Luxury and budget bathroom installations. Full project management available.
Block paving, resin, tarmac and concrete driveways with fast turnaround.
New roofs, repairs, flat roofing and emergency call-outs in Portsmouth.
Solar panels, battery storage and solar thermal systems installed by vetted Portsmouth specialists.
Emergency repairs, boiler replacements and full bathroom plumbing by CIPHE/APHC-verified plumbers in Portsmouth.
Full rewires, consumer units and EV chargers installed by NICEIC/ECA-registered electricians in Portsmouth.
Interior and exterior painting, wallpapering and full-house repaints by PDA and Dulux Select-accredited decorators.
Internal doors, fitted wardrobes and staircases by BWF and Institute of Carpenters-qualified joiners in Portsmouth.
Fencing, patios and full garden design & build by BALI and APL-accredited landscapers across Portsmouth.
Single, double, integral or detached garage conversions in Portsmouth — full building regs sign-off included.
OZEV-approved EV charger installers in Portsmouth — 7kW, 22kW, tethered, untethered and PV-linked options.
Domestic, commercial & chimney scaffolding hire in Portsmouth — erected, inspected and dismantled by CISRS-carded crews.
Mini, builders & RoRo skips delivered across Portsmouth — permits arranged and licensed waste carriers.
Home, office & long-distance removals in Portsmouth — packing, storage and insured BAR-member movers.
Combi swaps, system boilers and full conversions in Portsmouth by Gas Safe registered engineers.
Up-and-over, insulated roller and automated electric garage doors fitted across Portsmouth.
uPVC, aluminium and heritage double glazing in Portsmouth — FENSA registered installers.
Party walls, full rooms and floor/ceiling acoustic systems in Portsmouth, built to Part E.
Split, multi-split and ducted air conditioning installed across Portsmouth by F-Gas registered engineers.
Architects and architectural designers for extension plans, loft drawings and planning applications across Portsmouth.
Extensions, renovations, structural work and complete building projects with trusted Portsmouth builders.
NSI & SSAIB approved installers fitting bells-only, monitored and smart burglar alarms across Portsmouth.
Why Choose BestBuilders in Portsmouth?
Portsmouth is one of the UK's most active home renovation markets. With a diverse range of properties across the area, from period homes to modern new builds, local builders need to be versatile, skilled, and reliable.
BestBuilders vets every builder in our Portsmouth network. We check for public liability insurance, relevant trade qualifications (CIOB, FMB, Gas Safe, NICEIC), and a minimum of five verified customer reviews before any builder can appear on our platform.
Whether you are planning a rear extension, a loft conversion, or a full kitchen renovation in Portsmouth, we will connect you with the right specialist within 24 hours. All quotes are free and there is no obligation to proceed.
Start My Free Quote →Average Building Costs in Portsmouth
| Internal door hanging | £ 475 – £1,625 |
| Full house rewire | £ 3,800 – £8,600 |
| Fencing (per 25m) | £ 750 – £2,700 |
| Whole-house interior repaint | £ 1,600 – £3,800 |
| Emergency repair | £ 130 – £380 |
| Solar Panel System | £ 4,725 – £8,925 |
| Fitted wardrobes | £ 1,950 – £6,500 |
| Consumer unit replacement | £ 475 – £975 |
| Patio installation (25m²) | £ 2,150 – £7,000 |
| House exterior paint | £ 1,950 – £4,850 |
| New bathroom plumbing | £ 1,300 – £3,800 |
| Solar + Battery Storage | £ 8,925 – £15,750 |
| Staircase installation | £ 1,950 – £5,950 |
| Home EV charger install | £ 875 – £1,950 |
| Full garden design & install | £ 3,200 – £13,000 |
| Wallpapering per room | £ 375 – £925 |
| Boiler replacement | £ 1,950 – £4,300 |
| Solar Thermal System | £ 3,675 – £6,825 |
Indicative prices for Portsmouth area. See full cost guides →
Portsmouth Homeowners Trust BestBuilders
Cloakroom WC fit-out in Portsmouth, Southern. New first-fix copper, isolation valves at every fitting, heated towel rail loop. Quote of £10500 held to the penny. NICEIC Part P signed off the new lighting circuit and shaver socket. No callbacks needed - sealed properly first time.
Slate-stripped and re-laid on the 1970s detached in Portsmouth. New batten gauge to current spec, dry-verge and dry-ridge throughout. Came in at £11500 including scaffold hire. Properly clean site, all old tiles removed and recycled, no nails left on the drive.
Cobble-effect block paving in Portsmouth - 65m² covered. Excavated to 200mm depth, MOT type-1 base course, separation fabric, finishing layer. £4250 fitted, kerbside completed in 3 days. Drive walkable next morning, fully cured by the weekend.
Portsmouth Builder FAQs
Plan Your Project in Portsmouth
Whether you're researching costs, checking planning rules, or comparing builders before you commit, our editorial team has produced these guides to help Portsmouth homeowners make informed decisions.
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