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House extensions
Add the kitchen, living space or bedrooms your home needs, with the building, roofing and internal work coordinated from start to finish.
House extension servicesLocal builders near Dundalk
Extensions and renovations, built by one experienced local team.
JMK Developments brings building, glazing and bespoke joinery together for homeowners across Louth, Monaghan, Armagh and South Down—with more than 30 years of hands-on experience.
- Family-run
- 30+ years’ experience
- One coordinated team
- Cross-border coverage
30+years of
experience
experience
Family-runPersonal service from an experienced local team
Complete coordinationBuilding and finishing trades managed together
Craft-ledCareful construction, joinery and final detailing
Regional coverageLouth, Monaghan, Armagh and South Down
What we do
Explore all services Residential building services, coordinated from start to finish.
From creating new space to refining the final details, JMK brings the core trades together around one clear project.
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Home renovations
Reconfigure and improve existing rooms with practical building work, kitchen fitting, carpentry and high-quality finishes.
Renovation services
03
Atriums & window fitting
Bring natural light into the heart of your property with glazed roof structures, new windows and carefully completed installation work.
Atrium and window services
04
Bespoke joinery
Made-to-measure units, wall panelling, feature walls, wardrobes and the structural or finishing joinery required throughout the home.
Bespoke joinery servicesOne team, complete project
Less coordination for you. More control over the finish.
Major home projects become difficult when each stage is managed in isolation. We bring construction and finishing work together under one experienced team.
Meet JMK Developments01
Clear project conversation
Start with the space you want to create, the practical problem to solve and the stage your plans have reached.
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Coordinated trades
Building, carpentry, roofing, plumbing and electrical elements can be brought together around the wider job.
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Detailed finishing
Joinery and fitting capability helps carry the standard of work through to the details you see and use every day.
Recent work
See the full project gallery Real spaces, carefully transformed.
Extension & fit-out
Open-plan kitchen and living transformation
Glazed light, integrated kitchen and connected family space.
How it works
A straightforward route from enquiry to finished space.
Tell us about the project
Share the property location, type of work and approximate timing. If photographs or drawings would help, we can ask you to email them after the initial enquiry.
Discuss the scope
We review the requirements and confirm whether an initial conversation or site visit is the right next step.
Agree the work
The expected scope, responsibilities and key construction stages are clarified before work begins.
Build and finish
The necessary trades are coordinated through the construction, fitting and final detailing stages.
Local coverage
Based in Louth. Working across the border region.
We are based at Barronstown, Hackballscross near Dundalk and serve homeowners across Louth, Monaghan, Armagh and South Down.
DundalkCounty LouthCounty MonaghanCounty ArmaghSouth Down
DundalkLouthMonaghanArmaghSouth Down
Frequently asked questions
Planning your next home project?
We are based near Dundalk and serve customers across County Louth, County Monaghan, County Armagh and South Down. The size and exact location of the work help us confirm whether a project is a good fit.
Our core services are house extensions, home renovations, glazed atriums, window fitting and bespoke joinery. We can also coordinate supporting building, carpentry, plumbing, electrical and roofing work as part of a wider project.
Yes. We can coordinate the building, carpentry, electrical, plumbing and roofing elements required to complete a project from start to finish.
Use the project enquiry form to share your location, project type, approximate timing and a short description. We can then contact you to discuss the next steps and whether a site visit is required.
Start a conversation
Start an enquiry Make more of the home you already have.
Tell us what you are considering and where the property is located. The initial enquiry only takes a few minutes.