
House Extensions
Professional house extensions including single and two-storey additions
- Single storey extensions
- Two storey extensions
- Planning permission
- Design consultation
RB Joinery is a local team working with homeowners in Kilmarnock and across the wider Ayrshire area — we answer the phone, turn up, and take pride in the woodwork. Kilmarnock sits at the heart of Ayrshire — many of our projects start here. We offer honest quotes, tidy sites, and work built to live with every day.
& BUILDING SERVICES
Professional joinery and building services in Kilmarnock and across Ayrshire: house extensions, loft conversions, garden rooms, kitchens, and home improvements.

Professional house extensions including single and two-storey additions

Transform your loft space into beautiful, functional rooms

Create the perfect outdoor living space with bespoke garden rooms

Professional kitchen design, supply, and installation services

Complete home improvement and renovation services

Professional internal and external door fitting services

Complete bathroom fitting, upgrades, and refurbishment
Take a look at some of our recent joinery and building projects — including work in Kilmarnock and across Ayrshire & Glasgow.










We're based around Kilmarnock and work across the wider Ayrshire & Glasgow area. Contact us to confirm coverage for your postcode.
Map data © OpenStreetMap contributors — area shown is our typical service region.
We may be able to help with services outside our main coverage area. Contact us to discuss your specific needs and we'll do our best to accommodate you.
Common questions about our joinery, building services, house extensions, loft conversions, garden rooms, and home improvements — for homeowners in Kilmarnock and nearby.
Still have questions? We're here to help!
Ready to transform your home? Get in touch for your free, no-obligation quote today.
Running out of space in Kilmarnock? A house extension can give you the extra bedroom or bigger kitchen without the stress of moving. We talk you through single-storey and two-storey options, plus what paperwork and building rules might apply in your area.
We work with homeowners in and around Kilmarnock. You get clear plans, fair pricing, and builders who respect your home.
Steel work, openings, and load-bearing walls need care. We plan the work so your home stays safe while we add space.
A loft conversion is often the cheapest way to add a bedroom or office in Kilmarnock, where roof space often goes unused. We handle dormer and Velux-style jobs and help you decide what fits your roof and budget.
If your loft project is part of a wider fix-up, we can line up joinery with other room upgrades so the finish matches.
Garden rooms are popular for home offices and gyms in Kilmarnock and nearby Ayrshire — especially after more people work from home. We build insulated, usable spaces that sit outside your main house without losing quality.
New kitchen units need level floors, true walls, and neat cuts around pipes and cables. Our kitchen installation covers design help, supply where needed, and fitting that looks right in the long run.
Built-in cupboards and units use the same eye for detail: tight joints, smooth runners, and handles that line up.
Not every job needs a full extension. Sometimes you need new doors, a staircase fix, or repairs after damp or wear. We take on smaller home improvements and joinery repairs across Kilmarnock and nearby Ayrshire.
Rotten sills, loose doors, and creaky stairs are easy to put off. Fixing them early saves money and keeps your home safe.
Day-to-day joinery covers skirting, architrave, boxing, and finishing work. If it is wood in your home, we can usually help or point you in the right direction.
Rough and finish carpentry for projects big and small — from framing to final trims.
Repairs, new treads, handrails, and spindles — we keep stairs safe and solid.
Hanging doors, easing sticky frames, and fitting timber windows where repair matters more than a quick fix.
Alcove cupboards, shelving, and media walls built to match your room.
Larger jobs tie together structure, insulation, and joinery. Our building services work alongside your plans and local rules so the shell and the finish both hold up.
Shops, offices, and small commercial sites in Kilmarnock and nearby Ayrshire — we fit doors, screens, and timber work to match your brand and schedule.
Off-the-shelf does not fit every corner. Bespoke joinery means pieces cut and built for your space — odd angles, period details, or a specific look you cannot buy in a catalogue.
We work with your ideas and your designer’s drawings. Our job is to make the timber side work in real life.
Ready to transform your home? Get in touch for your free, no-obligation quote today.