Home Extensions & Brickwork Conversions

Unlock structural value with a brickwork extension or loft conversion. We coordinate your entire build from ground footings to custom joinery finishes.

Forensic Building Expertise for Your Home Extension

Building a residential extension or property conversions is a significant financial commitment. The key to a successful build is preventing thermal defects and moisture pathways. Standard builders frequently skip critical insulation overlaps at wall joints or fail to correctly tie in horizontal damp proof courses (DPC). Backed by twenty-four years of physical building contracting and twelve years of diagnostic surveying, we construct extensions to the highest standards.

Designing Out Thermal Bridges & Damp Breaches

When fresh brickwork meets old solid walls, a thermal bridge represents a high risk. Cold pathways from exterior walls seep inside, attracting water vapor and causing damp patches. We address these critical issues at every stage of the build:

DPC Connection Protocol: We map the old horizontal DPC and seal the new horizontal membranes with bituminous overlaps to form a watertight structural envelope.
Overlapped Footing Insulation: We lay modern high-density insulation sheets across screeds, overlapping cavity insulations to eradicate cold paths.
Bespoke Cavity Closers: Around newly fitted window cavities, we fit heavy insulated cavity closers to block drafts and halt thermal bridging.
Weep Hole Cavity Protection: We insert custom safety leaf ties and build correct cavity trays above structural openings to divert water safely outward.

Our Complete Extension Build Phases

We act as your principal contractor, managing all construction phases and coordinators:

Groundworks & Footings

Excavation, foundation concrete pours, structural soil checks, and building control inspection logs.

Brick & Blockwork

Cavity brickwork constructions utilizing modern mineral thermal batting insulation sheets.

Pitched & Flat Roofs

Pitched slates, structural attic beams, insulated joists, and durable rubber flat roofs.

Internal Finishing

Electric wiring, plumbing installation, full underfloor heating layouts, flat wall plastering, and paint coats.

A Single Point of Accountability

We run your complete building project, coordinating with structural engineers, architects, and municipal building controllers. This seamless integration ensures your building extension complies with current structural and thermal regulations (Part L), passing certificates easily.

Frequently Asked Questions

Q: Do conversions require planning permission?

Many home extensions fall under Permitted Development rules, but structural engineering and Building Regulations sign-offs are always necessary.

Q: How do you connect the extension's damp proof course to the existing cottage DPC?

We map and expose the original property's DPC line, aligning and overlapping the new horizontal dpc membranes with a robust lap joint, sealed with specialist bituminous wraps to prevent moisture rising at the junction.