Simply Extensions & Lofts Limited

What Simply Extensions & Lofts Limited does

Simply Extensions & Lofts Limited is a privately-held UK residential construction company registered in England (Company No. 07933807) that delivers house extensions, loft conversions, and property refurbishments to homeowners in South West London and Surrey. Its core service portfolio spans single-storey and two-storey rear and side-return extensions, kitchen extensions, full property refurbishments, and loft conversions (including en-suite and master-bedroom configurations), delivered through an end-to-end design-and-build model that bundles in-house architecture, planning applications, building regulations, party wall agreements, and construction under a single point of contact with a dedicated project manager.

The company operates on a purely project-based revenue model: each engagement is initiated via a free site survey, priced bespoke following assessment, and invoiced in stages as work progresses (quotes are valid for three months, lead-in times are 2–4 weeks, and average project timelines run 10–12 weeks). There is no recurring revenue stream, no subscription or maintenance offering, and no proprietary software platform — the core technology is conventional construction delivery augmented by an SEO-optimised marketing website with a substantial case-study and blog library. Customer acquisition is direct-to-consumer, driven by organic search, word-of-mouth referrals, and trust signals from Federation of Master Builders, Checkatrade, and Guild of Master Craftsmen accreditations.

In January 2025 the company extended its scope with the launch of a new sub-brand, Simply Windows & Doors, offering bi-fold doors, sash windows, and energy-efficient glazing — a deliberate vertical extension into adjacent home-improvement trades. The company is privately held with no disclosed institutional investors, no funding rounds, and no public revenue or headcount figures. Management visibility is limited to a single named individual (Stefan Droutis) in the public materials.

Name

Simply Extensions & Lofts Limited

Legal name

Simply Extensions & Lofts Limited

Website

https://simplyextensionsandlofts.com

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Simply Extensions & Lofts Limited is a privately-held UK residential design-and-build contractor delivering house extensions, loft conversions, and refurbishments to homeowners across South West London and Surrey on a project-based fee model.

Ownership category

akta.pro rank

Product category

Residential Construction Services

NAICS

Residential Building Construction (2361), Residential Building Construction (23611), Architectural Services (54131)

SIC

Services-To Dwellings & Other Buildings (7340)

akta.pro primary industry

Rear/Back-of-Home Extensions (HSAPADAC)

akta.pro secondary industries

Second-Story Additions (HSAPADAB), Side/Wraparound Extensions (HSAPADAD), Primary Suite / Bedroom & Closet Additions (HSAPADAH)

Keywords

• House extensions
• Loft conversions
• Home refurbishments
• Design and build services
• Residential construction

Headquarters

HQ city

City Of London

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Revenue model

1. Design and Build Construction Services: Revenue is generated entirely through one-time project-based fees for house extensions, loft conversions, and refurbishments. There is no recurring revenue stream. Projects are quoted on a bespoke basis following a free site survey, and clients pay in stages as work progresses (evidenced by testimonials referencing stage-based invoicing).

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Simply Extensions & Lofts Limited is a UK-based design-and-build construction company that delivers house extensions (single-storey rear, two-storey, side return, kitchen), loft conversions, and home refurbishments for residential properties in South West London and Surrey. The service covers the entire project lifecycle including in-house architecture, planning permission, building regulations, structural calculations, party wall agreements, and construction management under a fixed-price, no-deposit model.

Product overview

Simply Extensions & Lofts Limited operates as a complete design and build company offering house extensions, loft conversions, and home refurbishments across South West London and Surrey. Their core service portfolio includes house extensions (single-storey rear, two-storey, side return, and kitchen extensions), loft conversions (with en-suite, master bedroom, and bathroom configurations), and full property refurbishments. The company also offers a three-step Design & Build service providing in-house architecture, planning permissions, structural calculations, building regulations, and party wall agreements with dedicated project management. A 2025 expansion introduced Simply Windows & Doors as a sub-brand offering windows and doors installation.

Differentiator

Problem solved

Functional benefit

Brands

• Simply Windows & Doors: Windows and doors installation branch offering bi-fold doors, elegant sash windows, and energy-efficient glazing solutions launched in 2025.

Products and services

• House Extensions Full-service house extension construction for residential homeowners, including single-storey rear extensions, two-storey extensions, side return extensions, and kitchen extensions. The service spans design, planning, and build management.
• Loft Conversions Loft conversion services creating additional bedrooms and bathrooms for residential homeowners, including en-suite configurations, master bedroom builds, walk-in wardrobe installations, and configurations with Juliet balconies.
• Home Refurbishments Complete property refurbishment services for residential homeowners, often combined with extension work, covering full interior and exterior renovation of existing properties.
• Design & Build Services Three-step design and build service for residential homeowners providing in-house architectural services, structural calculations, planning applications, building regulation drawings, and party wall agreements with dedicated project management from a personal project manager.
• Simply Windows & Doors Windows and doors installation service for residential homeowners offering bi-fold doors, sash windows, and energy-efficient glazing solutions as a complementary branch to the parent company's extension and conversion services.

Quantifiable outcome

• Average project timeline: 10–12 weeks
• +3 more outcomes

Named customers20 records

Segments1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Four partnerships are on record, tiered minor and core.

• Guild of Master CraftsmenminorOthersThe company is a member of the Guild of Master Craftsmen, a trade association that provides consumer confidence through its membership vetting process. The logo is displayed on the website as a trust signal, signalling quality craftsmanship to prospective clients.
• Federation of Master Builders (FMB)coreOthersThe company is FMB accredited and offers an independent insurance-backed warranty through the FMB. This is a flagship partnership for the company, as the FMB warranty provides consumer protection and is prominently displayed on the website and insurance page. The company also appears on the FMB builder directory at fmb.org.uk.
• CheckatradecoreOthersThe company is listed on Checkatrade, a UK platform that vets and endorses reliable tradespeople. The Checkatrade badge is displayed prominently on the website as a primary trust signal. The company is listed at checkatrade.com/trades/simplyextensionsandlofts.
• Approved Contractor NetworkminorChannel Partner/ Reseller/ DistributorThe company maintains a network of approved contractors (plumbers, builders, roofers, electricians, and other trades) who are engaged on client projects. The company actively recruits new approved contractors in the areas they cover. This is a subcontractor/supply chain relationship rather than a commercial partnership.

Scale indicators1 record

Recent moves6 records

Expansion highlights5 records

Emerging players

• Origin Global: UK manufacturer and supplier of premium aluminium windows, doors (notably bi-fold), and roofing systems to both homeowners and trade installers. Relevant peer for Simply's newly-launched windows and doors sub-brand serving the same product niches (bi-fold doors, sash windows, energy-efficient glazing) at higher-end positioning.

Broad incumbents

• Zenith Staylish: London and South East-focused home improvements provider installing bifold doors, roofing, windows, and home improvement solutions for homeowners. Direct geographic overlap with Simply's SW London/Surrey turf and near-identical product mix for the windows/doors segment Simply Windows & Doors is targeting. Comparable scale with multiple-accreditation business model.
• Anglian Home Improvements: Large established UK home improvement provider with national coverage across windows, doors, conservatories, garage conversions, and home extensions. Similar end-customer demographic to Simply Extensions & Lofts and overlapping offerings, but with substantially broader geographic footprint, marketing scale, and product portfolio.
• Everest Home Improvements: Major UK home improvement brand offering windows, doors, conservatories, and roofing to UK homeowners. Overlaps with Simply Extensions & Lofts in target customer (UK residential) and the windows/doors segment where Simply is expanding via sub-brand Simply Windows & Doors, but operates at significantly larger national scale across multiple product categories.
• Wickes (Travis Perkins subsidiary): UK home improvement retailer and installer offering kitchens, bathrooms, and design-and-build services for homeowners including extension and refurbishment support. Operates at significantly larger scale with national showroom footprint; relevant as a wider-category incumbent adjacent to Simply's home improvement GTM.
• Safestyle UK: UK-focused installer specialising in PVCu windows, doors, and home improvement products, primarily replacement windows. Compares as a broad UK incumbent operating in the windows/doors segment that Simply is now entering via Simply Windows & Doors, serving a similar mass-market homeowner demographic but with a national footprint and listed-company scale.

Direct peers

• ProBuild360: London-based residential design-and-build company offering house extensions, loft conversions, refurbishments and renovations with a similar end-to-end service model including in-house architecture and project management. Direct geographic and product overlap with Simply Extensions & Lofts as a similarly-sized London operator in the residential design-and-build niche.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/simplyextensionsandlofts
• Instagraminstagram.com/simplyextensionsandlofts

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Simply Extensions & Lofts Limited