Why We Build Our Garden Rooms With SIPs
Structural insulated panels are the reason our garden rooms feel like part of the house rather than something parked at the end of the lawn.
The insulation and the structure are the same component, so the walls are thinner, the room is warmer, and the shell is watertight in days rather than weeks.
Pro Assist has been building across Bedford and Bedfordshire since 2018. We design the room, cut the panels to that design before anything arrives on site, and run the whole job with the same team from first visit to handover.
If you have been quoted for a timber frame garden building and want to understand what a SIP one does differently, that is a conversation worth having before you commit to either.
What our customers say
The Different Types of SIP Garden Rooms We Build
The panel system stays the same whatever you use the room for. What changes is the layout, where we put the glazing, what we run out from the house, and how it is finished inside.
Getting that right at the design stage is the difference between a room you use daily and one that becomes storage.
Where We Cover
From Bedford and Milton Keynes to Cambridge, Northampton and beyond, we design and build bespoke garden rooms across the region.
Why Homeowners Choose Pro Assist For Their SIP Garden Room
Most garden room companies sell a product from a range and fit it. We are a construction company that builds in SIPs, which changes what we can take on and who stays responsible.
What’s Included In A SIP Garden Room Build
We are not dropping a kit on your lawn for someone else to finish. A typical Pro Assist garden room covers:
- A site visit looking at your garden, access, ground and boundaries before any design work starts
- A design drawn around how you plan to use the room, not adapted from a standard model
- A clear answer on whether your build sits inside permitted development, and what to do if not
- A base specified for your ground conditions, whether that is ground screws, piles or a slab
- Structural insulated panel walls and roof, cut to your design before delivery
- Sealed and taped junctions, with ventilation designed to suit an airtight building
- A weathertight roof detailed for your chosen finish, with proper drainage
- Windows and doors positioned for light, privacy and how the room will be used
- A certified electrical supply run from the house, with sockets, lighting and data planned in advance
- Heating sized for the room rather than guessed at
- Plaster, flooring and internal finishes to a standard that matches the house
- Waste cleared as we go, and the site left tidy at the end of every day
If something you have asked for will not work, we will say so and explain why. That conversation is always cheaper before the build than during it.
Tips, Info, and Advice On Garden Rooms
Frequently asked questions.
Our most frequently asked questions.
We can include soundproofing materials in walls and flooring to reduce noise between rooms, great for both nap times and noisy game sessions. Soft furnishings like rugs, curtains, and wall panels also help dampen sound. We’ll suggest options based on how your family plans to use the space.
In most garages, yes. Some basic prep work is essential to make it warm and dry. We’ll assess the existing floor and advise if a damp-proof membrane or insulation is needed. In some cases, raising the floor slightly helps keep things level, warm and kid-friendly underfoot.
Often, yes. Many families choose electric panel heaters or portable air conditioners that don’t need big wiring changes. We can assess what’s needed for your specific setup, and where needed, our qualified electricians can discreetly install what’s needed to keep things safe and efficient.
Yes, a detached garage can absolutely be converted into a playroom! The main things to consider are access (especially in colder months), insulation, and connecting power safely. We’ll help you plan for all of that — from heating to lighting — so it feels just as comfortable and inviting as a room in the main house.
Most garages are. We’ll check everything over and give honest, professional advice so you know what’s possible.
Absolutely. If you’d like to retain part of your garage for storage or other uses, you can design a layout that splits the space effectively. Whether it’s for bikes, tools, or seasonal items.
Yes. Pro-Assist exclusively uses energy-efficient systems and materials to ensure your new home addition is as warm and cosy as it is, as well as well-built and of high value. Depending on the garage’s existing energy efficiency, we may increase the garage’s insulation, identifying any openings to the outside.
We also install energy-efficient windows and doors, which further enhance thermal performance and reduce heat loss. Often, the new garage conversion becomes one of the warmest rooms in the house. Perfect for a home office or snug den.
Absolutely! Home additions like an extra bedroom, cosy den, home gym, home cinema, or serene home office are highly sought-after by buyers. Home offices, in particular, are fast becoming a home essential in the new remote work environment.
According to Check a Trade, garage conversion can add up to 20% to your home’s value – that’s a staggering increase. Such sudden rises in your home’s value are associated with bedrooms with en-suite bathrooms. However, even adding a home office or playroom can boost your property’s asking price by 10%.
The duration of a garage conversion project depends on the size of the garage, the complexity of the finish, and the scope of the work. Usually, it takes around 2 to 5 weeks from start to finish. However, the job can take longer to complete if extensive insulation is required, it’s a double garage, or the building isn’t compliant with existing regulations.
Planning permission isn’t usually required for a garage conversion – assuming the work is internal and does not enlarge the building. If you intend to convert the garage into a separate house or annexe, then planning permission is required.
We can advise on speaking to the local planning authority to find out the relevant details about garage conversions in Milton Keynes.
We also handle the relevant building regulations, ensuring the construction accords with regulations related to thermal performance, fire safety, ventilation, and more. See the LABC website for further details.
A garage conversion is the transformation of a previously unused garage into a functional living space, such as a bedroom, games room, gym, or annexe. Compared to traditional extensions, garage conversions are usually cheaper, quicker, and easier to carry out, thanks to the existing structure.
While you’ll forgo a covered parking space, for most people, it’s a worthwhile sacrifice due to the additional living space they will gain.
Transforming your garage into an extra room not only improved your living space but is also a more cost-effective option than building an extension or relocating.
