Builders in Romford – Loft Conversion & House Extension Specialists

JJ Construction Group Ltd is a trusted building company in Romford and experienced building contractors, delivering high-quality residential construction services specialising in loft conversions, house extensions, renovations and full property refurbishments across Havering and surrounding East London areas.

Local Romford
Builders

40+ Years of
Experience

Fully Insured
Builders

High Quality Workmanship

Certified Team
of Professionals

Leading Construction Company in Romford

About Us

Leading Builders in Romford

JJ Construction Group Ltd is a trusted team of building contractors in Romford, delivering fully managed residential construction projects including loft conversions, house extensions, renovations, structural alterations, and new builds across Havering and surrounding East London areas.

As local builders in Romford, we understand the property types, planning requirements, and structural challenges across Havering and nearby areas.

Romford is one of the largest residential areas in the London Borough of Havering, featuring Victorian terraces, 1930s semi-detached houses, and modern family homes. Many of these properties offer excellent potential for loft conversions and house extensions in Romford, making home improvement a cost-effective alternative to moving.

We regularly work across Romford, Gidea Park, Harold Wood, Collier Row, Rush Green, Chadwell Heath, Hornchurch, and Upminster, delivering tailored construction solutions designed to maximise space and property value.

Our builders in Romford specialise in delivering fully managed projects from initial design and planning through to structural works, roofing, electrics, plumbing and final finishing. We are particularly known for loft conversions and house extensions in Romford, helping homeowners create additional living space without the cost and disruption of moving home.

Loft Conversion and House Extension Romford

Loft Conversion & Extension Specialists in Romford

At JJ Construction Group Ltd, we specialise in loft conversions and house extensions in Romford, helping homeowners create additional living space without relocating.

We design and build:

  • Dormer loft conversions
  • Hip-to-gable loft conversions
  • Rear house extensions
  • Side return extensions
  • Wrap-around extensions
  • Open-plan kitchen extensions

As experienced loft conversion builders in Romford and house extension specialists in Romford, we manage the entire project from planning guidance and structural work through to roofing, electrics, plumbing and interior finishing.

Many homeowners across Romford and Havering choose loft conversions and extensions to increase property value, improve functionality and create modern family living spaces.

Why Romford Properties Are Ideal for Extensions & Loft Conversions

Many properties across Romford and Havering have unused loft space, large gardens, or side access, making them ideal for extensions and loft conversions.

Most Victorian and 1930s homes in the area were not originally designed for modern family living, which is why property renovations in Romford are increasingly popular.

Homeowners across Romford, Hornchurch, and Upminster choose extensions and loft conversions to increase space and property value without the cost of moving.

Loft Conversion and House Extension Specialist in Romford

What We Do


our building services in Romford

We also provide specialist loft conversions, house extensions, renovations, outbuildings and general building services across Ilford, Romford and surrounding East London areas. Our fully managed construction solutions are tailored to each property type and homeowner requirement.

We offer a complete range of construction services across Romford including:

Loft Conversions

Convert unused attic space into functional living areas such as bedrooms, offices or bathrooms in Romford homes.

House Extensions

Create additional living space by extending your property with rear, side or wrap-around extensions in Romford.

New Builds

From foundations to completion, we deliver high-quality new build homes built to the highest standards in Romford.

Property renovations

Modernise and upgrade older properties in Romford with full or partial renovation solutions.

Full refurbishments

Complete property refurbishments that transform outdated spaces into beautiful, functional homes.

Structural Alterations

Modify internal layouts safely using steel supports to create open-plan living spaces in Romford homes.

General Building Works

Reliable building services for projects of all sizes, delivered by experienced builders throughout Romford.

Outbuildings

Bespoke garden rooms, home offices, gyms, and outbuildings designed to maximise your outdoor space and property value.

Professional Construction Company

Loft Conversions in Romford

Loft conversions are one of the most effective ways to add space without moving. Our loft conversion services help homeowners maximise unused roof space while increasing property value and functionality.

We build:

  • Dormer loft conversions
  • Hip-to-gable loft conversions
  • Mansard loft conversions
  • Velux loft conversions

Perfect for:

  • Extra bedrooms
  • Home offices
  • En-suite bathrooms
  • Guest rooms

Most loft conversions in Romford are completed within 6–10 weeks depending on the property structure, conversion type and project requirements. Our team manages every stage of the process including planning guidance, structural work, insulation, roofing, electrics, plumbing and final finishing.

House Extensions In Romford

We design and build high-quality house extensions tailored to your property layout and lifestyle requirements.

Our extension services include:

  • Rear extensions
  • Side return extensions
  • Wrap-around extensions
  • Kitchen extensions
  • Double storey extensions

Ideal for:

  • Open-plan kitchens
  • Larger family living spaces
  • Additional bedrooms
  • Dining room expansions
  • Modern home layouts
House Extensions in Romford

Property Renovations & Refurbishments

We provide complete renovation and refurbishment services for older homes, investment properties, and family houses throughout Romford.

Our renovation services include:

  • Internal remodelling
  • Structural alterations
  • Flooring installation
  • Plastering and decorating
  • Electrical upgrades
  • Plumbing improvements
  • Kitchen refurbishments
  • Bathroom renovations

We modernise properties while maintaining structural integrity, comfort, and long-term value.

Structural Alterations & General Building Services

Our experienced builders safely carry out a wide range of structural construction works designed to improve property layouts, increase functionality, and support modern open-plan living spaces.

Our renovation services include:

  • Load-bearing wall removals
  • Steel beam installation
  • Open-plan conversions
  • Brickwork and blockwork
  • Foundations and groundwork
  • Roofing and repair works
  • Internal structural reconfigurations
  • Chimney removals and alterations

All structural projects are completed in compliance with current UK building regulations.


How We Work


Our Construction Process

We follow a structured and professional process to ensure every project runs smoothly from start to finish.

Free consultation

We discuss your project requirements, property layout and budget.

Site Assessment

Our builders assess the property and provide recommendations for the most suitable construction approach.

Construction Phase

We complete all structural, building and installation works to a high professional standard.

final completion

We complete inspections and hand over your finished project.


Who We Are


Local Romford Builders You Can Trust

Choosing experienced builders is essential for ensuring construction work is completed safely, professionally and to a high standard. At JJ Construction group Ltd, we focus on clear communication, reliable workmanship and fully managed construction services tailored to each homeowner.

From loft conversions and extensions to structural alterations and renovations, our team is committed to delivering durable, high-quality property improvements across Romford and surrounding areas.

Property Types We Work on in Romford

We regularly carry out construction projects for:

  • Victorian terraced houses
  • Edwardian homes
  • Semi-detached properties
  • Detached houses
  • Modern family homes
  • Investment properties

Our experience with local property styles allows us to recommend practical loft conversion, extension and renovation solutions tailored to each property.

Fully Insured & Regulation-Compliant Builders

All construction work is completed in accordance with current UK building regulations and industry standards.

Our team works closely with structural engineers, building control officers and local authorities to ensure every loft conversion, extension and structural project is completed safely and professionally.

We maintain high standards of workmanship, site safety and project management throughout every stage of construction.

Why Choose Us

Why Choose JJ Construction group Ltd in Romford?

Fully Managed Builders in Romford

Fully Managed Building Services

From initial planning guidance through to structural work and final finishing, we manage every stage of your project with clear communication and professional coordination.

Experienced Local Builders in Romford

Experienced Local Builders

Our team has extensive experience working on residential properties throughout Romford, Havering and surrounding Essex areas, delivering high-quality services tailored to modern family homes.

High Quality Finishes

High-Quality Materials & Finishing

We focus on delivering durable construction work, modern finishes and long-lasting property improvements tailored to each home and family lifestyle requirements across East London.

JJ Construction Company Transparent Pricing

Transparent Pricing With No Hidden Costs

We provide clear and detailed quotations so homeowners fully understand project scope, timelines, and construction costs before work begins.

Reliable Builders in Romford

Reliable Project Timelines

Our team works efficiently and professionally to keep projects organised and completed within agreed construction schedules whenever possible.

Trusted Builders in Romford

Strong Focus on Customer Satisfaction

We prioritise quality workmanship, clear communication, and reliable service to ensure a smooth experience throughout every stage of the project.


Where We Work


Areas We Cover near Romford

We regularly complete construction projects across Romford and the wider Havering borough, including areas such as Gidea Park, Harold Wood, Chadwell Heath, Rush Green and Upminster.

Our team understands local building regulations, planning requirements and property styles commonly found throughout Romford, including terraced homes, semi-detached houses and modern residential developments.

Our Clients

client testimonials

  • “JJ Construction Group Ltd did an amazing job on our bathroom renovation. The team was professional, reliable, and paid great attention to detail from start to finish. Highly recommend them to anyone looking for a beautiful, high-quality bathroom remodel!”
Rahim Khan
  • “The most professional building service I have seen in a long time – they did a wonderful job transforming my house and were so quick and efficient. Wouldn’t recommend anyone else.”
Samara
  • “This is the best construction group I could ask for I wanted my kitchen to be bigger and better and they did exactly that I’m so glad I found this business if u don’t want to be disappointed then call up Jj construction.
Arrib khan

Frequently Asked Questions


Got Questions?

We’re happy to help. If you can’t find the info you’re looking for, please don’t hesitate to reach out to us!

Call us +44 7903 658189

Yes, we provide free, no-obligation quotes for all loft conversions, house extensions, renovations and general building work in Romford and surrounding Havering areas.

We offer a full range of services including loft conversions, house extensions, new builds, property renovations, structural alterations, outbuildings and general construction services across Romford and East London.

Most house extensions in Romford take between 8–16 weeks depending on the size, design complexity and structural requirements of the project.

A typical loft conversion in Romford takes around 6–10 weeks depending on the property type, conversion style and structural work involved.

We work on Victorian terraces, Edwardian homes, semi-detached houses, detached properties and modern residential homes across Romford and Havering.

Yes. We manage all stages of construction projects including planning guidance, structural work, roofing, plumbing, electrics, plastering and final finishing.

We also work across Gidea Park, Hornchurch, Harold Wood, Chadwell Heath, Upminster and surrounding East London and Essex areas.

Request Free Quotes From Builders in Romford

If you are planning a loft conversion, house extension, renovation, or building project in Romford, our experienced construction team is ready to help.