10+ Years Manchester Experience
Add Up To 20% To Your Property Value
Completed In Just 8-12 Weeks
Fixed Pricing - No Hidden Costs
All Extension & Conversion Types
Premium Materials & Craftsmanship
Rothmore provided a complete package from the architect helping submit the planning application and turning my random scrap drawings into reality. They had people working in unison from builders to electrician to plasterer.
What type of extension or conversion are you considering?
With 10+ years transforming Manchester homes, every extension and conversion features premium materials, expert craftsmanship, and complete management from planning to handover - bringing your vision to life on time and budget.
Single Storey Extensions
Expand your ground floor with rear, side, or wrap-around extensions. Ideal for open-plan living and entertaining spaces.
Kitchen Extensions
Create the heart of your home with a spacious kitchen extension. Single or double storey options to suit your lifestyle and budget.
Garage Extensions or Garage Conversions
Convert your garage into valuable living space - perfect for home gyms, offices, or additional bedrooms.
Conservatories & Orangeries
Bring light and luxury into your home with bespoke glass structures that blend seamlessly with your property.
Your Extension Journey: Simple, Transparent, Stress-Free
Expanding your home should be exciting, not overwhelming. We've refined our process over 10+ years to make your extension journey as smooth as possible. Here's exactly what to expect:
Get Started Online
Share your home extension goals and we'll guide you through the best options for your home and budget.
Frequently Asked Questions
How much will my extension cost?
Prices start from £20,000 and vary depending on size, type and materials. We provide detailed, transparent quotes after your free consultation, with our fixed pricing guarantee meaning no hidden surprises.
How long will the work take?
Most extensions complete within 8-12 weeks from breaking ground. Loft conversions typically 6-8 weeks. We provide precise timelines and stick to them.
Will this disrupt our family life?
We take great pride in minimising disruption. Work is carefully managed and contained, with our respectful team maintaining a clean, safe site throughout the project.
Do you handle planning permission?
Yes, completely. Our architects manage all planning applications and building regulations. We know Manchester's planning requirements inside out.
Can I spread the cost?
Yes. We work with trusted finance partners offering competitive rates and flexible payment plans to make your dream extension affordable.
Will this really add value to my property?
Quality extensions typically add 20% to property value - up to £100,000 on higher-value Manchester homes. Often delivering 150%+ return on investment.
Why Choose Rothmore Build? Manchester's Trusted Home Extension Experts Since 2014
Part of the award-winning Rothmore Property Group, we bring the same excellence in property development to home extensions.
With over 10 years transforming Manchester homes, our commitment to quality, transparent pricing, and outstanding service has made us the trusted choice for premium home transformations.
- • 10+ Yrs Local Experience - We know these properties inside out
• Premium Quality - Finest materials, expert craftsmanship
• Full Service - One manager handles everything
• Planning Experts - We navigate all permissions
• Satisfaction Guarantee - Complete peace of mind
Ready To Add 20% To Your Property Value?
Stop dreaming about extra space. In just 30 minutes, we'll show you exactly how to unlock your home's potential.
• FREE consultation
• No-obligation quote
• Expert recommendations
• Fixed pricing guarantee
• FREE Hybrid Glass Unit or Velux window included
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Part of Rothmore Property Group | Serving Manchester and the North West
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Limited Time Offer: Book this month to get a FREE Hybrid Glass Unit or Velux Window with every extension*
Delivered On Time and On Budget
Not sure which is right for you? Our architects will guide you through the options, recommending the perfect style for your home and lifestyle.
Double Storey Extensions
Maximise your property's potential with two floors of additional space. Perfect for growing families.
Loft Extensions or Loft Conversion
Transform your unused attic into a stunning master suite, home office, or family room. Dormer, mansard, hip to gable, or Velux options available.
Free 30-Minute Design Consultation
In just half an hour, we'll assess your space, discuss possibilities, and provide a ballpark figure - with absolutely no obligation.
Design & Planning
Our experts transform your ideas into meticulously crafted designs that maximise your space and reflect your style.
Detailed Quote
Receive a comprehensive breakdown of works with fixed pricing - no hidden costs or unpleasant surprises.
Expert Build
Your dedicated team leader oversees every aspect of construction, ensuring all work meets our high standards.
Enjoy Your New Living Space
Before we leave, we'll submit a snagging list, remove any scaffolding and ensure everything is clean and tidy before we leave you to enjoy your dream extension.
What type of extension do I need?
Our experts will assess your property's structure and your needs before recommending the ideal extension type. We'll guide you through all possibilities during your free consultation.
What type of extension do I need?
Our experts will assess your property's structure and your needs before recommending the ideal extension type. We'll guide you through all possibilities during your free consultation.
Add 20% To Your Manchester Home's Value in 12 Weeks
Get a premium home extension with fixed pricing and zero stress. We handle everything from design to build, transforming your home on time and on budget.
Get expert advice and a fixed-price quote in your free 30-min consultation.
