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Browse reliable Security systems / Alarms in Harefield

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C & N Constructions is a well-established company offering construction and landscaping services for both residential and commercial clients. Our faith: We believe in open and honest communication and shared goals which will generate greater continuity in workload and thereby provide sustained improvements in quality, efficiency & delivery. Our mission: To safely deliver any project, any time, in any environment for the benefit of our customers, shareholders, employees and the communities we serve. Company vision: C&N Constructions is committed to building long-term relationships based on integrity, performance, value, and client satisfaction. We will continue to meet the changing needs of our clients with our quality services delivered by the most qualified people. Get in touch and we can start asap! We offer free and no obligation project estimate.

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Reviewed by John on 29/6/2025

The job was to cut back a severely overgrown patch of garden. Chris & his team, Adrian & Cosmin, gave me a competitive quote, after coming to visit the site to assess what needed to be done. They started next day and completed the job quickly and to my complete satisfaction. The site was cleaned up & all waste taken away. I will definitely use them again and strongly recommend them.

We are specialists in Aerial networks, Audio Visual, CCTV, Wi-Fi distribution, Data networks and HDMI distribution - We have been in business since 2011 with 30+ years of experience to draw from with over 700 happy customers to date. Our friendly team has fully equipped vehicles which are ready to serve you at short notice in the London, Greater London and home counties areas. Our staff are very knowledgable, uniformed, clean, tidy and at all times, very professional - plus we always take our shoes off!

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Reviewed by Gordon on 24/9/2025

KM&CO. Security Systems has been a trusted name for over 15 years of experience in the security industry, providing advanced solutions in London. Founded on the principles of safety and professionalism, KM&CO. Security Systems has established itself as a leader in the security industry. Our team is dedicated to delivering tailored security solutions, ensuring peace of mind for our valued clients. With a portfolio of advanced alarm systems (specialist in Texecom systems) installation & service, high-tech Dahua Technology IP CCTV setups and customized access control solutions. we meet the diverse security needs of individuals and businesses alike. Our commitment to client satisfaction has earned us a stellar reputation in London and beyond. Limited Company registered in England and Wales.

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Reviewed by Ian on 7/8/2025

Excellent job completed changing the house intruder alarm and explaining how the new system works. Expertise combined with client care and efficient work. Fully recommended without reservation.

“I am a versatile handyman with expertise in a wide range of home repairs, maintenance tasks, and gardening services. From fencing repairs, build,patio and paving to carpentry and painting, I bring a strong attention to detail and craftsmanship to every project. With my 5 years experience on private jobs,and all the customers been very happy about my services, i am pleased to introduce my self with confidence and enthusiasm! Additionally, I have experience in gardening, including landscaping, plant care, and garden maintenance. I am committed to delivering high-quality work that ensures both your home and outdoor spaces look their best.” I am new on this site,app, and I don’t have any reviews yet, but definitely they will come!

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Reviewed by Julie on 16/12/2025

Excellent workmanship completed by Ciprian. Very clean and neat work. Will certainly utilise Ciprians services again and will recommend him to other flat owners who need Building services. Thank you.

Flow help ordinary people future-proof their homes by delivering an extraordinary service that leaves you feeling ecstatic. Are you looking for a trustworthy, honest company then if so Flow has got you covered. Whether you need an electrical inspection/work, security or CCTV installation, our vetted electricians are happy to help you.

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Reviewed by Jon on 6/2/2025

Arrived on time, very courteous, and job done without fuss, to budget with suggestions to reduce the costs. Would use again.

M25 Plumbing & Heating is your reliable solution for all your plumbing needs. Specializing in bathrooms, kitchens, and central heating systems, we offer comprehensive services to ensure your home's plumbing is running smoothly. From basic plumbing installations to emergency repairs, our team has plenty of experience to handle any situation efficiently and effectively. With a commitment to quality workmanship and customer satisfaction, you can trust M25 Plumbing & Heating to deliver exceptional service every time.

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Reviewed by Maureen on 18/11/2025

Great communications, arrived on time & was very helpful & resolved all issues to high satisfaction. Will definitely hire Adam again.

B&T Puddle Electrics is a family run business covering Berkshire and the surrounding areas. We are certified Level 3 fundamental inspection, testing and initial verification, we have also been awarded level 3 for requirements for electrical installations. We offer a free quotation, no obligation service. From a few spotlights to a complete rewire we are happy to help.

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Reviewed by Anarjan (Lax) on 10/11/2025

Hi We are experienced builders, residential and commercial building and maintenance services Have been in business for around 15 years We offer quality services at reasonable prices

`We are a building company with many years of experience. We specialise in bathroom and kitchen, from scratch to complete refurbishment, our work is of high quality at reasonable price, with warranties and is covered by public liability insurance

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Reviewed by Yury on 12/1/2025

Krzysztof did a great job fitting 2 showers, decorating ensuite, changing all the taps and 2 showers, and doing a number of small fixes and improvements in the flat. I appreciate his clear and detailed communication on job needed, options provided, and consulting on fittings and materials. He finished the job with high quality and with just a small delay despite of a good amount of obstacles (we did painting in parallel). Would definitely recommend Chris's services!

LD Design & Build is a trusted construction company specializing in a wide range of services to meet the needs of both residential and commercial clients. With a focus on quality and attention to detail, we offer expert plastering and rendering, painting and decorating, plasterboard installation, as well as handyman and carpentry services. Whether you're renovating a single room or undertaking a large-scale project, our skilled team is committed to delivering superior craftsmanship and exceptional customer service every step of the way. At LD Design & Build, we take pride in transforming spaces and ensuring our clients' vision comes to life with precision and care.

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Reviewed by Matt on 21/10/2025

Welcome to Avisec With 30 years of industry experience, we offer the latest in Burglar Alarms, CCTV, Fire protection. Our commitment to quality service and high standards ensures that you receive the best protection systems, at the best price. • 30 years in industry • Fast, seamless installations to the highest standards • Free installation quote • Trusted specialists • Product Warranty • Insurance approved systems • NDAA Compliant CCTV • One-day Alarm installation Our Alarm & CCTV package prices are benchmarked across the industry to offer the best competitive value for money, guaranteed. We specialise in fast deployment Wire-Free Intruder alarms and Fire alarm systems from various leading vendors that conform to EN50131 regulations. As trusted Approved ‘SERAGE CCTV’ installers we design and install a range of CCTV products which are British designed and ‘NDAA compliance’ approved which instils confidence in customers that prioritise their security using only trustworthy and safe technology solutions. SERAGE CCTV features Face recognition, ANPR, Cameras with inbuilt sounding alarms and many more features for home or business. SERAGE CCTV is a price disruptive brand offering better technology at lower cost than other well know brands, also NDAA approved for your security . TTRUSTED BY BOTH BUSINESS AND HOME OWNERS We consistently update our inventory to include the most advanced protection solutions. Our customers benefit from the latest technology at great prices, along with prompt and efficient service for properties of any size. We prioritize being readily available to our customers, ensuring swift responses whenever they need us with post install support for added peace of mind. Be Safe. Be Secure 24/7, call us today, no obligation quotes, no pushy sales.

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Reviewed by Anil on 16/9/2024

Required job was done efficiently. Friendly team. Easy communication.

Welcome to Selectrofix Ltd. NICEIC registered contractor and domestic installer. Selectrofix Ltd should be your first choice for high-quality, affordable electrical services. Established in 2017, we are an independent, family-run business with over 25 years of experience. As approved electrical contractors, you can be sure that we carry out safe work meeting the most recent standards and regulations with all the right insurances and policies. We offer customers an extensive range of professional electrical services and repairs across domestic and commercial sectors with an emphasis on: • Inspection and Testing certification offering Electrical Installation Certificate Reports (EICR) for property owners and HMOs • Fire and smoke alarm tests • EV charger installation • Full and partial rewiring • Fuse box replacement • PAT testing. Full or partial electrical design installations with expert help and advice on the best possible options specific to each client’s needs. This includes providing certification and ensuring legal compliance for all electrical work. By choosing a National Inspection Council for Electrical Installation Contracting (NICEIC) registered contractor, you can be confident that you are dealing with a competent, compliant business whose people hold the appropriate skills, experience and insurances needed to complete your project to the correct technical standards.

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Reviewed by lisa on 8/11/2025

Very professional and friendly, sorted the issue out quickly

London Development uk ltd is our company, we have been trading for over 12 years in the construction business. - We are a fully insured company with a big portfolio of jobs completed and we are friendly and reliable on any work and business that is coming across. - We can do big jobs as new buildings or full refurbishments, basements, extensions, lofts conversions etc and also we can do small jobs as bathroom refurbishments or even smaller is always space and time for a new job. - We guarantee you that you will get the best workmanship on your job with best skills and acknowledge in the construction industry, time effective and costly effective for customers. Try our company and you will gain the benefits!!!

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Reviewed by Rita on 25/12/2023

Peter contacted me and was amazing, professional with his quote and recommendation. Very clean, tidy service and very open and honest. Peter and his team are excellent builders.

Hants Electrical Services are an NIC EIC approved contractor

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Reviewed by AJ on 30/10/2024

Very good service. Prompt, got on with the job. Andy was very helpful and informative. Cleared and vacuumed when finished.

Hi everyone , thanks checking my profile I’m Vas , have more than 10 years experience in construction I got level 3 diploma in carpentry, my main job is carpentry, but being in the industry so long I also can do handyman, fencing, ground work and foundation, decking, etc j

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Reviewed by Emre on 15/4/2024

Brilliant workmanship , did exactly how we needed the shelves to be made. Highly recommended

Hi. Let me help You with Your - full or part electrical rewire - garden lighting project - led strip installations - downlights installation - new kitchen electrical installation - domestic smoke detection system - extractor fans installation - smart central heating controllers - electric under floor heating - loose of power and tripping brakers - upgrade of sockets and switches - consumer unit replacement - NIC EIC Certificates

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Reviewed by Adam on 6/2/2024

A guy called Michael showed up, gave it all the large talk about what he would do. Gave him an address for another project also out of goodwill so he didn’t have to buy another lead. Promised to get back to me despite promising me he would return that week to do the work. Instead just ignored every phone call and message. He kept mentioning about wanting to do it in the evening…. This was impossible as it was a shopfront. Absolutely no balls, AVOID LIKE THE PLAGUE!

Specialise in reactive maintenance

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Reviewed by Helen on 15/12/2025

Christian did excellent work and was always thoughtful and helpful - above and beyond.

ERA Construction Solutions Ltd WHO ARE WE? The story of our team, 16 years and going really strong: For a decade, Era Construction has been leading the way in all aspects of luxury design and build. Whether you're looking to expand or refine your home with a loft conversion, rear or side extension, basement excavation, cellar conversion or a top to bottom refurbishment. We also complete home renovations, roofing work and bespoke projects. Our ethos is quality-first craftsmanship for the very best in residential design and build in London. From small touch-ups to full property refurbishment - we make a neat job of it all. WHY OUR BUILDING COMPANY? When it comes to the quality and care that we put into every project, we think of ourselves as one of the leading building companies in London. This means that, as the right builder, we have the team, the expertise and the commitment to a high quality that sets us apart. 1. Fully insured with Public and Employers Liability, Professional Indemnity, Contractors All Risk and high-risk basement works. 2. We offer a 15-year guarantee on all of our structural building work. Proficiency only uses the highest quality building materials ensuring everything is built to standard and will last. 3. We have a large team of office-based staff, including a dedicated project manager providing you with peace of mind and security throughout your project.

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Reviewed by Shanti on 27/7/2024

The job is still going on not completed yet I will rate when the bathroom renovation is completed

We are an electrical contractors with over 20 years of experience. NICEIC registration. Always delivering friendly and exceptional service. Public liability insurance for your peace of mind.

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Reviewed by Tunji on 7/10/2024

Great price, prompt and professional.

Chameleon Refurbs have over 25 years experience in all types of Building Refurbishments so choose Chameleon Refurbs with confidence

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Reviewed by Isaac on 29/11/2025

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