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

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 & 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:
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.

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.

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:
Perfect for:
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:
Ideal for:

Property Renovations & Refurbishments
We provide complete renovation and refurbishment services for older homes, investment properties, and family houses throughout Romford.
Our renovation services include:
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:
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:
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 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
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 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.

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

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
Rahim Khan
Samara
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
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.
