Construction companies in Northern Ireland

951 construction companies across Northern Ireland.

• J Jpm Contracts Ltd Derry · Main contractor · 10-49 employees

  JPM Contracts is an award-winning family-run construction company based in Dungiven, Northern Ireland. Established in 1994, they deliver high-quality

• J Jsw Developments Ltd Newtownards · Main contractor · 1-9 employees

  JSW Developments specialises in bespoke healthcare construction and fit-out, including mental health, special education needs, elderly care, and priva

• K K. Henry Construction Ltd Co. Antrim · Concrete works

  KHC specialise in Reinforced Concrete Construction, offering technical expertise for complex projects. They have offices in Northern Ireland and the I

• K K&D Roofing Solutions Ltd Bangor · Roofing · 1-9 employees

  K&D Roofing Solutions provides expert roof installation and repair services for commercial and domestic properties across Bangor, Belfast, and Norther

• K Kane Group Building Services Ltd Banbridge · M&E contracting · 1-9 employees

  Kane is a leading MEP contractor delivering innovative and value-adding Design, Mechanical, Electrical, Public Health, Prefabrication and Fit Out proj

• K Kap Properties Downpatrick · House builder · 1-9 employees

  Welcome to Kap, builders of beautifully designed properties in thoughtfully chosen locations. We make a positive and lasting difference to people's li

• K Kap Properties (Ardglass) Ltd Downpatrick · Property developer

  Kap Properties (Ardglass) Ltd is a property developer company based in Downpatrick, registered at Companies House in 2025.

• K Kb Electrical (Ni) Ltd Springfield · Electrical · 10-49 employees

  KB Electrical (NI) Ltd is a company based in Springfield, Fermanagh, UK. The company's website is currently unavailable.

• K KC Netting Omagh · Scaffolding

  KC Netting provides fall arrest safety netting and edge protection systems for construction sites across Northern Ireland and Ireland. Committed to wo

• K Keelryan Developments Ltd Co Down · Main contractor · 1-9 employees

  Keelryan Developments Ltd is an established Main Contractor with extensive experience in delivering high-quality projects across education, healthcare

• K Kelly Brothers Developments Ltd Warrenpoint · Property developer

  Kelly Brothers Developments Ltd is a property developer company based in Warrenpoint, registered at Companies House in 2025.

• K Kelly Brothers Ltd Warrenpoint · Main contractor

  Kelly Brothers have been a key provider of construction services in Northern Ireland for over 57 years, delivering ambitious projects with a client-fo

• K Kelly Building Contracts Ltd Newry · Main contractor · 1-9 employees

  Kelly Building Contracts Ltd is a family-run construction firm in Mayobridge, Co Down, specialising in new build residential and commercial projects,

• K Kelly Mechanical Services (Ni) Ltd Dungannon · Heating & ventilation

  Kelly Mechanical Services: Providing Innovative & Sustainable Solutions for 20 Years. Trust us for your mechanical services needs.

• K Kennetix Electrical Services Ltd Belfast · Electrical

  Professional electrical contracting services across Belfast and Northern Ireland. Domestic, commercial, industrial & EV charging installations. NICEIC

• K KERCON CONSTRUCTION Londonderry · Main contractor · 1-9 employees

  Kercon Construction is a building and civil engineering main contractor based in Kells, Co. Meath, undertaking projects across Ireland in various sect

• K Kevmar Ltd Londonderry · Steel fabrication · 10-49 employees

  Kevmar Ltd is a premier engineering company based in Derry, Northern Ireland, providing exceptional engineering solutions and manufacturing high-preci

• K Keyes Brothers Construction Ltd Omagh · Main contractor · 10-49 employees

  Keyes Bros Construction Ltd is a construction company based in Omagh, Co. Tyrone, Northern Ireland.

• K Kilbroney Timber Frame Ltd Rostrevor · Timber frame · 10-49 employees

  Kilbroney Timberframe are leading timber frame manufacturers and builders, with a state-of-the-art plant in Newry. They specialise in custom timber fr

• K Kildress Joinery Ltd Cookstown · Carpentry & joinery

  Kildress Joinery is a family-owned joinery workshop and retailer in Cookstown, Co Tyrone, specialising in manufacturing and wholesaling quality timber

• K Killowen Contracts Ltd Newry · Main contractor

  Killowen Contracts Ltd is a leading Building, Civil Engineering and Fit-Out Contractor working throughout Northern Ireland and Ireland for 50 years.

• K Killultagh Projects Ltd Belfast · Property developer

  Killultagh is a family-run property development company based in Belfast, creating exceptional, innovative, and sustainable commercial, retail, and re

• K Killuney Holdings Ltd Armagh · M&E contracting · 1-9 employees

  Freelance mechanical estimating services providing accurate and timely estimates for residential and commercial projects across the UK and Ireland.

• K Kilrock Construction Ltd Coleraine · Main contractor · 10-49 employees

  Kilrock Construction is a leading building Contractor in the UK & Ireland specialising in Redevelopment, Retail, Office & Industrial Projects

• K KJM ELECTRICAL LTD Downpatrick · Electrical · 10-49 employees

  KJM Electrical Ltd is a leading electrical contracting firm in Northern Ireland, offering specialist technical resources and expert maintenance servic

• K Kllc Contracts Ltd Londonderry · House builder · 1-9 employees

  KLLC Contracts Ltd is a property developer and main contractor based in Claudy, Northern Ireland, specializing in residential developments. They aim t

• K Kmdl Engineering (Ni) Ltd Belfast · Electrical · 10-49 employees

  KMDL Engineering (NI) Ltd offers high-quality electrical installation services across Northern Ireland & the UK, with a focus on customer satisfaction

• K Kmg Contracting Ltd Banbridge · Main contractor · 1-9 employees

  KMG Contracting Ltd is a local firm offering building services in Belfast and surrounding areas. Specialising in building & renovations.

• K Knox Engineering Ltd Castlewellan · Steel fabrication

  Knox Engineering Limited is a precision machining company specialising in the manufacture of component parts using CNC Milling and Turning processes.

• K Konfloor Ltd Armagh · Concrete works · 10-49 employees

  KonFloor Ltd is a specialist industrial flooring contractor providing design and installation of concrete floor slabs across the UK and Europe.

• K KPC Civils Omagh · Civil engineering · 1-9 employees

  KPC Civils specializes in civil engineering, utility, and groundworks projects across the UK and Ireland, focusing on safety, precision, and sustainab

• K Krs N.I Ltd Armagh · Electrical

  KRS provides specialist electrical contracting and compliance services for industrial, commercial, healthcare, and education environments.

• K KSK Rathmor Engineering & Recruitment LTD Derry · Electrical

  KSK Rathmor Engineering & Recruitment LTD: Connecting companies with the right workforce through permanent, contract, and outsourcing recruitment serv

• K Kudos Window Systems (Ni) Ltd Newtownabbey · Windows & doors

  Kudos Window Systems supplies and installs premium, energy-efficient windows and doors across Ireland. Quality solutions designed for modern homes.

• L Lagan Airport Maintenance Ltd Belfast · Civil engineering · 10-49 employees

  Lagan Airport Maintenance Ltd is a civil engineering company based in Belfast, registered at Companies House in 2017.

• L Lagan Aviation & Infrastructure Group Holdings Ltd Belfast · Civil engineering · 50-249 employees

  Lagan Aviation & Infrastructure is a leader in civil engineering for airport and defense infrastructure worldwide, with over 30 years of experience de

• L Lagan Aviation & Infrastructure Ltd Belfast · Civil engineering · 50-249 employees

  Lagan Aviation & Infrastructure Ltd is a civil engineering company based in Belfast, registered at Companies House in 2014.

• L Lagan Homes (Ardnavalley) Ltd Belfast · Main contractor

  Lagan Homes (Ardnavalley) Ltd is a main contractor company based in Belfast, registered at Companies House in 2014.

• L Lagan Homes (Beverley Garden Village) Ltd Belfast · Main contractor

  Lagan Homes (Beverley Garden Village) Ltd is a main contractor company based in Belfast, registered at Companies House in 2015.

• L Lagan Homes (Blackwood) Ltd Belfast · Main contractor

  Lagan Homes (Blackwood) Ltd is a main contractor company based in Belfast, registered at Companies House in 2010.

• L Lagan Homes (Carryduff) Ltd Belfast · Property developer

  Lagan Homes (Carryduff) Ltd is a property developer company based in Belfast, registered at Companies House in 2013.

• L Lagan Homes (Charlestown Hall) Ltd Belfast · Main contractor

  Lagan Homes (Charlestown Hall) Ltd is a main contractor company based in Belfast, registered at Companies House in 2015.

• L Lagan Homes (G.B.) Ltd. Belfast · Main contractor · 50-249 employees

  Lagan Homes (G.B.) Ltd. is a main contractor company based in Belfast, registered at Companies House in 2010.

• L Lagan Homes (Hampton) Ltd Belfast · Main contractor · 10-49 employees

  Lagan Homes (Hampton) Ltd is a main contractor company based in Belfast, registered at Companies House in 2018.

• L Lagan Homes (Hillsborough) Ltd Belfast · Main contractor

  Lagan Homes (Hillsborough) Ltd is a main contractor company based in Belfast, registered at Companies House in 2023.

• L Lagan Homes (Lisburn) Ltd Belfast · Main contractor · 10-49 employees

  Lagan Homes (Lisburn) Ltd is a main contractor company based in Belfast, registered at Companies House in 2014.

• L Lagan Homes (Magherahinch) Ltd Belfast · Main contractor

  Lagan Homes (Magherahinch) Ltd is a main contractor company based in Belfast, registered at Companies House in 2013.

• L Lagan Homes (Millmount) Ltd Belfast · Main contractor

  Lagan Homes (Millmount) Ltd is a main contractor company based in Belfast, registered at Companies House in 2009.

• L Lagan Homes (N.I.) Ltd Belfast · Main contractor · 1-9 employees

  Lagan Homes (N.I.) Ltd is a main contractor company based in Belfast, registered at Companies House in 2013.

• L Lagan Homes (Rathgael) Ltd Belfast · Main contractor

  Lagan Homes (Rathgael) Ltd is a main contractor company based in Belfast, registered at Companies House in 2015.