Skip to content
2A Construction Logo
Home
AllGeneralRefurbishmentLoftExtentionRoofingPainting and DecoratingFlooringPlumbingElectrical
ServicesEstimatorAbout usContactCertifiations and Compilance
Sign inCreate account
2A Construction Logo
Home
ServicesEstimatorAbout usContactCertifiations and Compilance
Sign inCreate account
2A Construction

Premium construction across London — extensions, loft conversions, roofing, HMO conversions & full domestic refurbishments.

  • 2a.construction.uk@gmail.com
  • +44 790 3095 967
  • London, UK

Company

  • About Us
  • Projects
  • Estimator
  • Contact
  • Certifications

Services

  • Extensions
  • Loft Conversions
  • Roofing
  • Refurbishments
  • Painting & Decorating
  • Flooring
  • Plumbing
  • Electrical
  • HMO Conversions
  • Commercial Change-of-Use

Policies & Compliance

  • Anti-Bribery & Corruption Policy
  • Health & Safety Policy
  • Environmental Policy
  • Modern Slavery Policy
  • GDPR / Data Protection Policy
  • SafeWorkforce Policy
  • Privacy Policy (Coming Soon)
  • Terms & Conditions (Coming Soon)

© 2026 2A Construction Ltd. All rights reserved.

Registered in England & Wales • Company No: 15102296

Portfolio/Loft Conversion & Extension – Full Insulation Installation
Project image 1

Loft Conversion & Extension – Full Insulation Installation

2/6/2026loftpublished

At 2A Construction, we ensure every project is built to the highest standards — from structural framing all the way to achieving full thermal efficiency. This stage of the loft conversion and rear extension involved a full installation of high-performance insulation throughout floors, ceilings, walls, and around Velux windows. ✔ What was completed: • Full Floor Insulation High-density IKO Enertherm insulation installed between joists to maximise heat retention and eliminate cold bridging. • Ceiling & Roof Slope Insulation All roof slopes and ceilings fully insulated to building-control standards for energy efficiency and soundproofing. • Velux Window Perimeter Insulation Precision-cut panels fitted around each Velux frame for airtightness and minimal thermal loss. • Service Integration Electrical cables, plumbing routes, and structural joists coordinated with insulation placement for a clean and compliant finish. • Preparation for Plasterboard The loft is fully insulated and ready for plasterboarding, creating 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

More featured work

Loft Conversion & Extension – Full Insulation Installation | Our Projects | 2A Construction
Featured

Featured Projects

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

View all projects →
Rear Extension & Full Ground Floor Transformation cover

Rear Extension & Full Ground Floor Transformation

A complete rear extension and ground-floor transformation, creating a much larger and brighter open-plan living space. The project involved major structural works from the ground up, including new foundations, blockwork, steel installation, a new insulated roof structure and large rear openings. The completed extension has been finished with wide black-framed bi-fold doors, rooflights, a modern kitchen and herringbone flooring, creating a strong connection between the house and garden. External works included rendering, drainage adjustments and construction of a new raised composite deck with steps and balustrades. Works included: Groundworks and new foundations Blockwork construction Structural steel installation New timber roof structure Roof insulation and rooflights Large rear opening with bi-fold doors Full internal plastering and decoration New kitchen installation Electrical and lighting works New herringbone flooring External rendering New composite decking and balustrades Drainage and associated external works Status: Completed

View project
Loft Conversion - Walthamstow cover

Loft Conversion - Walthamstow

A full loft conversion transforming the existing roof space into a modern, functional living area. The works included significant roof alterations, new structural timber construction, insulation and weatherproofing, together with a large contemporary dormer finished in matching clay tiles. The dormer features a striking full-height glazed frontage with aluminium-framed windows and doors, complemented by bespoke zink cladding around the roofline and openings. Careful detailing was used to integrate the new structure with the original property while giving the loft a clean, modern architectural finish. The project included: Structural roof alterations and new timber framework Construction of the new dormer extension Roof tiling and external tile hanging Insulation and weatherproofing Large aluminium-framed glazing Bespoke zink fascia and cladding Detailed junction work around the existing roof and brickwork

View project
Custom Garden Planters & Landscaping Installation cover

Custom Garden Planters & Landscaping Installation

Installation of custom raised garden planters with ground preparation. Built to create a clean, modern, and durable garden feature. Project completed by 2A Construction Ltd.

View project