What we do

Quality builds, clean finishes, and compliant delivery across London & the Home Counties.

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A mix of our extensions, lofts, roofing & refurbishments.

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Homeowner-approved

Why homeowners pick us

Interactive snapshot of how we deliver clean, on-time builds.

Free Site Visit

We assess, measure & advise before quoting.

Fixed-Price Quote

Transparent scope. No hidden extras.

Clear Schedule

Agreed start/finish dates & milestones.

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Snag-Free Handovers

“We build like it’s our own home.” — 5★ feedback, tidy sites, clean handovers.

Fully insured • Building Control compliant • Clear schedule

Recent work snapshots

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Kitchen extension
Kitchen extension
Loft conversion
Loft conversion
Full refurb
Full refurb
New roof
New roof
Rear extension
Rear extension
Dormer conversion
Dormer conversion
Featured

Featured Projects

A quick look at some recent work across extensions, lofts and refurbishments.

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Loft Extension – Full Construction & Interior Transformation cover

Loft Extension – Full Construction & Interior Transformation

This project showcases a complete loft extension carried out by 2A Construction Ltd, turning an unused roof space into a fully functional, modern living area. From structural works and steel installation to plasterboarding, flooring, insulation, and final decoration, our team delivered a high-quality finish from start to completion. Scope of Works Structural demolition & clearance Steel beam installation (RSJs) New floor joists and structural floor system Full roof construction including rafters, insulation & breathable membrane External roofing finish & tiling Dormer construction Electrical first & second fix Full plasterboarding & skim finish Flooring installation Final decoration and fitting of furniture Before & During Construction The loft was initially an unused attic space. Our team began by clearing the existing structure, installing steels, forming new joists, and constructing the dormer. Images show: Structural works New rafters Membrane installation Roof build-up Boarding & preparation Interior Works Once the structure was completed, we moved internally to create a comfortable, bright and modern living environment: Insulated plasterboard installation Skimming and wall preparation Subfloor installation Painting & finishing Electrical outlet installation Custom carpentry where required Completed Space The final result is a fully converted loft room with a clean, modern finish perfect for use as a bedroom, office, or additional living space. The bright walls, integrated lighting, and new flooring create a welcoming, spacious atmosphere. Why Choose 2A Construction Ltd? Our team manages every stage of the build — from structural works to decoration — ensuring: High-quality workmanship Fast and reliable project delivery Compliance with all UK building regulations Clear communication from start to finish

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Loft Conversion – Structural Works & New Roof Formation cover

Loft Conversion – Structural Works & New Roof Formation

At 2A Construction, we specialise in complete structural transformations — from steel installation to full timber roof construction. This stage shows the major progress on a full loft conversion, including steel beams, new roof structure, and staircase installation. 📌 What Was Completed: ✔ Structural Steel Installation (RSJs & PFC Beams) Heavy-duty steel beams were lifted and fixed into position to support the new loft floor and roof structure. These steels form the backbone of the conversion, ensuring long-term stability and compliance with structural engineer specifications. ✔ New Timber Roof Formation A complete roof structure has been constructed, including: New rafters Ceiling joists Structural trimmers for Velux windows All timbers fixed using structural-grade brackets and fixings The roof is now weather-protected under a full temporary scaffold roof cover. ✔ Velux Window Openings Prepared Timber framing has been installed around all Velux openings, ready for the roofers to fit the windows and complete the waterproofing. ✔ New Staircase Installed A custom-made solid timber staircase has been fitted to connect the new loft with the lower floors. The staircase is built to exact measurement, ensuring safe access and perfect fit within the existing layout. ✔ Internal Timber Stud Walls All new internal partition walls have been built, defining the layout of the loft rooms and hallway. 🏗 Why This Stage Matters This phase is crucial in every loft conversion because it transforms the empty roof space into a structurally safe, load-bearing extension of the property. With steels, rafters, joists, and stairs installed, the project is now ready to move efficiently into: Roof tiling Insulation First fix electrical & plumbing Boarding and plastering

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Loft Conversion & Extension – Full Insulation Installation cover

Loft Conversion & Extension – Full Insulation Installation

At 2A Construction, we ensure every project is built to the highest standards — from structural framing all the way to achieving full thermal efficiency. Below is a look at the latest stage of works on this loft conversion and rear extension, where our team completed a full installation of high-performance insulation throughout the floors, ceilings, walls, and around the Velux windows. 📌 What was completed: ✔ Full Floor Insulation High-density IKO Enertherm insulation installed between the joists to maximise heat retention and eliminate cold bridging. ✔ Ceiling & Roof Slope Insulation All roof slopes and ceilings fully insulated to building-control standards, ensuring long-term energy efficiency and excellent soundproofing. ✔ Velux Window Perimeter Insulation Precision-cut insulation panels fitted around each Velux frame to guarantee airtightness and prevent thermal loss. ✔ Service Integration Electrical cables, plumbing routes, and structural joists carefully coordinated with insulation placement for a clean and compliant finish. ✔ Preparation for Plasterboard The entire space is now fully insulated and ready for plasterboarding, transforming the loft into a warm, comfortable, and energy-efficient living area. This stage is crucial because: It ensures low energy bills Keeps the home warm in winter and cool in summer Prevents condensation and mould Meets UK Building Regulations for loft conversions Builds the foundation for a high-quality finished space

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How your project flows

A clear, simple path from first visit to clean handover.

  1. 1

    Site Visit

    Measure, inspect and capture your brief.

  2. 2

    Fixed Quote

    Scope, inclusions and schedule—no surprises.

  3. 3

    Build & Protect

    Daily protection, tidy site, clear updates.

  4. 4

    Clean Handover

    Deep clean, snag-free finish, warranties.

What clients say

“Brilliant communication and finish. The extension was delivered exactly as quoted and the site was kept tidy throughout.”

— S. Patel, Croydon

“Loft conversion completed ahead of schedule. Team was courteous and the project manager kept us updated weekly.”

— A. Thompson, Barnet

“Full refurb with new kitchen & bathrooms. Quality workmanship and zero snags at handover.”

— M. Rossi, Walthamstow

FAQs

How soon can you start?

Small works can start within weeks; larger projects are typically scheduled 4–8 weeks ahead after approvals.

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Do you handle planning & building control?

Yes. We coordinate drawings, structural calcs, applications and inspections with a single point of contact.

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What guarantees do you provide?

10-year structural guarantee as standard. Manufacturer warranties apply to materials.

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Fully insured & compliant

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Extensions, lofts, refurbishments, roofing — delivered on time and within budget by a fully insured London team.

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