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0117 920 3000
Federation of Master Builders (FMB) Approved & Insured

Quality Extensions, Roofing & Loft Conversions in Bristol.

From single-storey rear kitchen extensions and dormer loft conversions to complete slate re-roofing and structural brickwork. Built on schedule, on budget, and to structural engineering standards.

Book a Free Site Survey

We visit your property, discuss your architectural drawings, and provide a comprehensive fixed quotation.

What We Build

Master Building & Roofing Contractors

Backed by 20 years of construction experience across Bristol and the South West. All structural work guaranteed for 10 years.

House Extensions

Expand your living space with bespoke rear kitchen extensions, wrap-around extensions, and two-storey additions. Full project management from foundations to plaster finish.

Free architectural consultation

Loft Conversions

Transform unused attic space into stunning master bedrooms with en-suites. Specialists in rear dormer, hip-to-gable, and Velux loft conversions.

Comprehensive turnkey build

Pitched & Slate Roofing

Complete roof replacements using natural Welsh slate, clay tiles, or modern concrete interlocking tiles. Breathable membrane and treated battens as standard.

10-year insurance backed warranty

EPDM Flat Roofing

High-performance Firestone EPDM rubber roofing systems for garages, extensions, and dormers. Tough, seamless, and proven to last over 50 years.

20-year membrane guarantee

Structural Brickwork & Steels

Removing load-bearing walls, installing RSJ steel beams to structural engineer calculations, underpinning, and traditional stonework restoration.

Building control certified

Emergency Roof Repairs

Storm damage repairs, slipped slates, leaking lead flashings, chimney stack repointing, and UPVC fascia and guttering replacement.

Rapid leak containment
Client Reputation

What Property Owners Say

★★★★★

5.0 / 5.0 rating on Checkatrade & Federation of Master Builders

★★★★★

"Apex built a 6-metre rear kitchen extension with bifold doors on our 1930s semi in Henleaze. The site was kept immaculate, trades ran like clockwork, and they finished 3 days ahead of schedule."

Simon & Rachel Green Henleaze, Bristol
★★★★★

"Replaced our entire slate roof and lead valley after severe storm damage. They scaffolded the property promptly and worked through freezing cold weather to get us watertight. Honest, skilled tradesmen."

Michael Thornton Redland, Bristol
★★★★★

"Completed a master bedroom dormer loft conversion with en-suite. The structural steel work was flawless, building control signed off without a single snag, and the finish is outstanding."

Dr. Andrew Clarke Clifton, Bristol