5-Star Rated Garden Room Builders
Garden Rooms,
Built for Life.
Fully insulated, year-round garden buildings — offices, gyms, bars and studios designed around you.
How We Build
Built In Situ — Fully Bespoke On Your Site
Every LouMil garden room is constructed entirely on your site. Materials are delivered, foundations laid, and the structure built from the ground up by our own team — not flat-packed or prefabricated. This means longer on-site labour and a higher investment than panel-built alternatives, but the result is a true bespoke building shaped to your exact garden, taste and use.
Why Choose a LouMil Garden Room?
Not a shed. Not a summer house. A proper, insulated building you can use every single day.
Year-Round Comfort
Fully insulated walls, floor & roof. Use it every day, whatever the weather.
Complete Electrics
Sockets, lighting, heating & data points — all included and certified.
Built By Our Own Team
No subcontractors, ever. The same people who quote your job are the ones who build it.
Built to Fit
Designed around your garden, access & how you'll use the space.
10-Year Guarantee
Full structural warranty. We stand behind every build we complete.
Bespoke Pricing
Every Garden Room Is Quoted Individually
Built fully in situ and tailored to your site, garden rooms are priced based on your size, spec, and groundworks. Book a free consultation and we'll send a fixed, all-included price.
Ready to Transform Your Garden?
Get a free site visit and detailed quote. No hard sell, just honest advice from a family business.
How It Works
Simple, straightforward, stress-free. From enquiry to handover in weeks, not months.
Free Consultation
We visit your garden, discuss your vision and measure up. No obligation.
Design & Quote
You receive 3D visuals and a fixed-price quote. No hidden costs, ever.
Build & Handover
Our team builds on-site in 1-2 weeks. You get a finished, ready-to-use space.
Everything Included.
No Hidden Costs.
Every LouMil garden room comes turnkey — ready to use from day one. We don't quote cheap and add extras later. What we quote is what you pay.
What Will You Use Yours For?
Every build is custom designed around your garden, your access and how you'll use the space.
Garden Offices
Dedicated workspaces with electrics, heating and data points. Perfect for remote working.
Garden Gyms
Private fitness spaces with reinforced floors, ventilation and optional spa facilities.
Garden Bars & Entertainment
Entertainment spaces for socialising, games nights and parties. Custom bar counters and cinema setups.
Garden Salons
Professional spaces for hair, beauty and aesthetics businesses with plumbing and treatment areas.
Creative Studios
Inspiring spaces for artists, musicians, content creators and hobbyists.
Common Questions
Everything you need to know about garden rooms.
How much does a garden room cost?
Every garden room is individually priced based on size, specification and any extras like plumbing or upgraded electrics. Contact us for a free, no-obligation quote.
Do I need planning permission for a garden room?
Most garden rooms fall under permitted development and don't require planning permission, provided they meet certain criteria such as being under 2.5m at the boundary. We'll advise you during your free site survey.
How long does it take to build a garden room?
Most LouMil garden rooms are completed in 1-2 weeks on site. Larger or more complex projects may take a little longer. We'll give you a clear timeline during the quotation process.
Are your garden rooms fully insulated?
Yes, every garden room we build is fully insulated for year-round use. Walls, floor and roof are all insulated to high standards, making the space comfortable in both winter and summer.
What's included in the price?
Our prices include everything: base, structure, insulation, electrics, flooring, internal finish, and all labour. No hidden extras. What we quote is what you pay.
Testimonials
What Our Clients Say
Verified reviews from real homeowners on Google.
Your Garden Room Journey
Starts Here
Join 100+ happy customers who've transformed their gardens. Use our pricing calculator for an instant fixed price — no obligation, no pushy sales.
Or call us: 0121 798 2698