Professional roofing services for homes and businesses across High Wycombe and the HP postcodes. Roof repairs, new installations and replacements with free surveys, transparent written quotes and guaranteed workmanship.
Tell us about your roof. We usually reply the same day.
Your roof protects everything beneath it. Our approach is simple: careful surveys, straight-talking advice and tidy workmanship. Whether you need a same-day leak fix or a full re-roof, Alliance Roofing & Building delivers long-lasting work that homeowners across High Wycombe and HP14 can trust.
Every project is handled by trained, fully insured roofers who follow industry standards from survey to sign-off. You get clear prices, quality materials and tidy finishes that keep your property dry and protected. We know the stereotype: pushy quotes and messy sites put people off. Our service is different. You get photos with your survey, a clear written price, agreed start dates and respectful clean-up. Materials come from recognised UK suppliers and are fitted to specification.
We fix leaks, slipped or broken tiles, ridge and valley failures, damaged flashings and storm impact. You get photos of the fault and an itemised quote before we start. Many small repairs are completed the same day where access is safe.
We install new tiled and slate roofs with care for every layer, from breathable underlay and graded battens to precise ridge and verge detailing. Ventilation is designed to protect your loft, leadwork is formed and fixed correctly, and fixings follow manufacturer guidance. From full re-roofs to matching a few damaged tiles, our team blends traditional craft with modern components, sourcing suitable profiles for High Wycombe homes and securing hips, valleys and ridges for long-term performance. You receive before-and-after photos and a written workmanship guarantee.
We install and repair GRP fibreglass, torch-on felt and EPDM rubber systems. Falls are checked for drainage, outlets are sized and positioned correctly, and trims are sealed for a clean look. Where suitable we can overlay a sound deck to reduce cost, always confirmed in writing after inspection.
Sudden leak or storm damage? We make the roof safe and watertight, then return for permanent works when conditions allow. You receive temporary weathering, a clear plan and a fixed price for the follow-up repair, with priority call-outs across the HP area.
We replace tired timber with low-maintenance uPVC systems that protect rafter ends and improve airflow. Colour-matched fascias and soffits, bird guards where needed, and tidy drip edges. Any soft or decayed wood is replaced so the new system lasts.
We install and repair uPVC and aluminium gutters and downpipes. Alignment and joints are tested with water so rain drains away from brickwork and foundations. We also clear and flush existing systems and can fit guards to reduce blockages.
Chimneys are common leak points. We repoint, renew stepped and tray flashings, form back gutters and soakers, and cap unused pots to reduce water ingress while maintaining ventilation. Redundant stacks can be safely removed on request.
Old spray foam can trap moisture and hide defects. We carefully remove foam to restore breathability, assess timbers and replace any affected sections. A breathable underlay can then be installed to keep the loft dry and compliant with modern standards.
We clean roofs by hand to protect tiles, then apply a biocide treatment to slow regrowth. Cleaning is only carried out once faults are repaired, so appearance improvements do not mask issues that need attention.
★★★★★ 103 verified Checkatrade reviews
"Mitchell was polite, friendly and knowledgeable. The team were polite and efficient. The work was completed for the price quoted, which was competitive, and in the timeframe advised."
"Repair of a box gutter behind a parapet wall. Mitchell undertook a detailed diagnosis of the work required, started the job quickly and completed it satisfactorily."
"Replacement of a flat roof. Mitchell and his team are smart, communicative, skilled, friendly, helpful, trustworthy and reliable. I would highly recommend their roofing services."
Verified reviews from across our South East service area. Before-and-after photos from HP14 and surrounding areas available on request.
Free inspection, no call-out charge, honest written quote, usually the same day.
