Expert Attic & Loft Extensions in Merstham

Professional, reliable, and high-quality loft extensions. We manage the entire process for Merstham homeowners, from planning permission to the final coat of paint.

Get Your Free Merstham Quote
10-Year Warranty On all Structure
FMB Member Vetted Master Builders
Fully Insured £5m Public Liability
TrustMark Gov. Endorsed Quality

Why Choose Loft Conversion in Merstham?

Transform your Merstham property without moving. Add space and value with our expert loft conversion service.

Increase Merstham Property Value

Add up to 20% to your Merstham property value with a professional loft conversion.

Stay in Merstham

No need to leave Merstham. Get the space you need in your current home.

Quick Merstham Installation

Most Merstham loft conversions completed in 4-6 weeks with minimal disruption.

Extra Merstham Living Space

Create bedrooms, offices, or playrooms perfect for Merstham family living.

Expert Merstham Loft Conversion Specialists

Transform your Merstham property's unused loft space into beautiful, functional living areas with our professional loft conversion services. Whether you need an extra bedroom, home office, or playroom in Merstham, we create bespoke solutions tailored to your lifestyle.

Our experienced Merstham team handles every aspect of your loft conversion project. From initial design and planning permission through to final decoration, we ensure your Merstham conversion maximizes space, natural light, and property value.

  • Dormer loft conversions in Merstham
  • Hip-to-gable conversions for Merstham homes
  • Mansard loft conversions in Merstham
  • Velux window installations across Merstham
  • En-suite bathrooms for Merstham lofts
  • Merstham planning permission support
Merstham loft conversion specialist at work

Merstham Loft Specialists

CITB Certified • Merstham Planning • Building Regulations

Types of Loft Conversions in Merstham

Choose the perfect conversion type for your Merstham property to maximize space and value

Velux Loft Conversion in Merstham

Velux Loft Conversion Merstham

The most cost-effective option for Merstham properties using roof windows for natural light. Perfect for Merstham homes with adequate headroom.

  • Most affordable in Merstham
  • Minimal structural work
  • No Merstham planning permission usually
  • Natural light throughout
Dormer Loft Conversion in Merstham

Dormer Loft Conversion Merstham

Add valuable floor space and headroom to your Merstham property with single or multiple dormers. Popular choice in Merstham for space optimization.

  • Maximum Merstham space gain
  • Improved headroom
  • Additional windows
  • Cost-effective for Merstham
Hip-to-Gable Conversion in Merstham

Hip-to-Gable Conversion Merstham

Transform sloping hip roofs into vertical gable walls in your Merstham home, significantly increasing usable floor space. Ideal for Merstham semi-detached properties.

  • Substantial Merstham space increase
  • Improved room proportions
  • Better natural light
  • Enhanced Merstham property value
Mansard Loft Conversion in Merstham

Mansard Loft Conversion Merstham

The premium option for Merstham properties creating maximum space with near-vertical walls. Perfect for period properties in Merstham.

  • Maximum Merstham floor space
  • Multiple rooms possible
  • Period Merstham property suitable
  • Highest value addition

Merstham Loft Conversion Requirements

Your Merstham property needs minimum 2.3m headroom at the highest point and sufficient floor area for conversion. Our Merstham specialists provide free assessments to determine if your loft is suitable and advise on the best conversion type for your Merstham property and budget. Most Merstham conversions fall under permitted development rights, but we handle all planning and building regulations applications where required.

Merstham Planning & Regulations Guide

Permitted Development in Merstham

Most terraced and semi-detached homes in Merstham have a 40-50 cubic meter allowance for roof extensions without full planning permission. We handle all Lawful Development Certificate applications for you.

Merstham Building Control

Every conversion we build is inspected by approved inspectors to ensure compliance with Part B (Fire Safety) and Part L (Insulation) of the building regulations specific to Merstham housing stock.

Party Wall Agreements

Living in a terraced or semi-detached house in Merstham? We manage the Party Wall Notice process with your neighbors to ensure works can start on time.

Complete Merstham Loft Conversion Services

Free Merstham Loft Assessment

Comprehensive evaluation of your Merstham loft space, structural assessment, and advice on the best conversion type for your property.

Merstham Design & Planning

Architectural drawings, 3D visualizations, and planning permission applications for Merstham properties. We handle all regulatory approvals.

Merstham Structural Work

Steel beam installation, floor strengthening, and staircase construction by qualified Merstham engineers.

Merstham Windows & Dormers

Velux roof windows, dormer construction, and window installations to maximize natural light in Merstham homes.

Merstham En-Suite Bathrooms

Complete bathroom installations including plumbing, electrical work, and luxury fixtures in your Merstham loft.

Merstham Interior Finishing

Plastering, decorating, flooring, and interior design services to create beautiful Merstham living spaces.

Our Merstham Loft Conversion Process

Merstham Planning & Design Phase

  • Free Merstham Survey: Comprehensive assessment of your loft space
  • Design Development: Architectural drawings for Merstham properties
  • Merstham Planning Applications: Local authority submissions where required
  • Structural Calculations: Engineering assessments for Merstham building control
  • Fixed Price Quote: Detailed Merstham pricing with full breakdown

Merstham Construction Phase

  • Project Management: Dedicated Merstham project manager
  • Structural Work: Steel beams and strengthening in Merstham
  • Roofing & Windows: Dormer construction for Merstham homes
  • Services Installation: Merstham certified electrical and plumbing
  • Interior Finishing: Quality finishing to Merstham standards

Free Merstham Survey

Professional space assessment

Merstham Design & Planning

Architectural drawings and approvals

Expert Merstham Construction

Professional loft specialists

Loft Conversions Across Merstham

Merstham City Centre

Professional loft conversions throughout Merstham city centre, including period properties, modern homes, and conservation areas requiring specialist Merstham planning expertise.

Merstham Suburbs

Expert loft conversion services across all Merstham suburban areas. Specializing in semi-detached, detached, and terraced properties throughout Merstham.

Merstham Period Properties

Specialist conversions for Merstham's Victorian, Edwardian, and period properties. Sympathetic designs maintaining character while maximizing space.

Merstham Conservation Areas

Expert handling of Merstham conservation area requirements. We navigate planning restrictions and create beautiful conversions that comply with local regulations.

Merstham Loft Conversion Statistics

500+

Merstham Loft Conversions Completed

4.9/5

Average Merstham Customer Rating

15+

Years Serving Merstham

100%

Merstham Building Control Approved

Why Choose Building Group for Merstham Loft Conversions?

Local Merstham Expertise

With over 15 years of experience in Merstham, we understand local planning requirements, building regulations, and architectural styles. Our Merstham team delivers exceptional loft conversions that enhance your property value.

Merstham Quality Guarantee

  • Merstham Planning Experts: We handle all local authority requirements
  • Local Merstham Team: All work by trusted local professionals
  • 10-Year Guarantee: Full warranty on all Merstham conversions
  • Fixed Merstham Pricing: No hidden costs or surprises
  • Insurance: Fully insured for Merstham projects

Merstham Service Areas

  • Merstham City Centre
  • North Merstham
  • South Merstham
  • East Merstham
  • West Merstham

Recent Merstham Loft Conversion Projects

Hip to Gable Loft Conversion in Merstham

Victorian Terrace - Merstham

Hip-to-gable conversion creating master bedroom with ensuite in a Victorian Merstham terrace. Added 30sqm of living space.

Project Value: £48,000

Dormer Loft Conversion in Merstham

Modern Semi - Merstham

Dormer loft conversion in modern Merstham semi-detached. Created two bedrooms and bathroom for growing family.

Project Value: £42,000

Mansard Loft Conversion in Merstham

Period Property - Merstham

Mansard conversion in Merstham conservation area. Luxury master suite with dressing room and ensuite.

Project Value: £65,000

What Merstham Homeowners Say

★★★★★

"Top quality dormer conversion. Added significant value to our Merstham property. Friendly team and very clean working environment."

- Thomas Brown, Merstham

★★★★★

"They managed the party wall agreement with our Merstham neighbors professionally. The whole street was impressed with their cleanliness."

- Andrew Martin, Merstham

★★★★★

"Honest, reliable and skilled. Our mansard loft in Merstham looks incredible. They finished exactly on budget."

- Jessica Green, Merstham

Merstham Loft Conversion Pricing Guide

Merstham Loft Conversion Costs

Loft conversion costs in Merstham vary based on type, size, and specifications. Typical Merstham prices: Velux conversions £20,000-£30,000, Dormer conversions £35,000-£45,000, Hip-to-gable £40,000-£55,000, Mansard conversions £45,000-£65,000. All Merstham quotes include structural work, insulation, electrics, plastering, and building control fees. Contact us for a free Merstham survey and detailed quote.

Estimated Investment for Merstham Lofts

A transparent guide to typical conversion costs in the Merstham area (2025 Estimates)

Conversion Type Suitability Timeframe Price Range
Velux (Roof Light) Existing headroom > 2.3m 4-6 Weeks £20k - £30k
Dormer (Rear) Semis & Terraces 6-8 Weeks £35k - £50k
Hip-to-Gable End-terrace & Semi-detached 8-10 Weeks £45k - £60k
Mansard Period Properties / London Styles 10-12 Weeks £50k - £75k+

*Prices are indicative for Merstham properties and subject to survey.

Meet Your Merstham Project Lead

Senior Loft Consultant for Merstham

Mathew Oneill

Senior Structural Specialist

"I oversee all loft conversions in the Merstham area. My job is to ensure your project meets local building regulations while maximizing every inch of space. I'm happy to visit your property for a preliminary structural assessment."

  • 20+ Years Exp.
  • CIOB Member

Make Your Merstham Neighbors Jealous Today

Warning: A new loft by Building Group may cause you to never leave your Merstham house again.

Book Free Merstham Loft Survey