— A Armstrong Plumbing & Heating
New Milton's Trusted Boiler & Heating Specialists
Family-run heating engineers for boiler installations, repairs and servicing across New Milton, Christchurch, Lymington, Highcliffe and Ringwood. Gas Safe registered and Vaillant & Glow-worm accredited for safe, compliant work.
5.0/5Average Review Score (745 reviews)
745 Five-Star Reviews
“Andy is professional and works to a high standard. He is efficient, knowledgeable and happy to advise. We've used his services several times and never hesitate to recommend him. It's very reassuring to have a trustworthy and reliable plumber.”— Google
— Services
Our Services
Expert heating services across New Milton
01
Boiler Installation
Professional boiler replacements and new installations across New Milton, Christchurch and Lymington. System assessments, safe removals, power flushing and manufacturer registration included.
02
Boiler Repairs
Fast, Gas Safe boiler fault-finding and repairs across New Milton, Christchurch and Lymington. Experienced engineers, manufacturer parts and full safety checks to get heating and hot water back on quickly.
03
Boiler Servicing
Annual boiler servicing in New Milton and nearby towns. Gas Safe engineers carry out safety checks, component cleaning, gas flow testing and provide a full service report to protect warranties and reduce breakdown risk.
04
Heating Installation & Repairs
Family-run heating engineers in New Milton. Gas Safe registered team installing energy-efficient condensing boilers, smart controls and diagnosing radiator and system faults with clear, practical advice.
05
Radiator Installation
Supply and professional fitting of new and replacement radiators across New Milton and the New Forest. Valve upgrades, TRVs and system balancing to stop cold spots and get consistent heat where you need it.
06
Power Flushing
Force out sludge, stop cold spots and protect your boiler with a professional power flush from A Armstrong Plumbing & Heating. Local Gas Safe engineers with over 20 years' experience.
07
Unvented Hot Water Systems
High-pressure unvented cylinders installed and serviced by Gas Safe and G3-qualified engineers. Reliable, compliant work for homes, holiday lets and larger properties across New Milton and nearby towns.
08
General Plumbing
Everyday plumbing handled with professional kit and clear, no-nonsense workmanship — from leaking taps to full system checks across New Milton, Christchurch and Lymington.
09
Water Softener Installation
Protect boilers, unvented cylinders and white goods from limescale with a correctly specified and fitted water softener. Family-run, Gas Safe registered engineers serving New Milton and surrounding villages.
— ABOUT US
Local heating engineers you can rely on
A family-run business based in New Milton with over 20 years' hands-on plumbing and heating experience. Practical, safety-first engineers delivering tidy installations, reliable repairs and routine servicing backed by manufacturer accreditations and Checkatrade vetting.
- 20+ years' practical experience across residential and holiday-let properties
- Gas Safe registered engineers — all gas work completed to current regulations
- Vaillant & Glow-worm accredited installer with eligible warranty support
- G3 unvented, fully insured and Checkatrade vetted
— WHY CHOOSE US
Why Choose Us
Gas Safe registered engineers
Every boiler installation, repair and safety check is carried out by Gas Safe registered engineers to ensure compliance and homeowner safety.
Manufacturer accreditation
Vaillant and Glow-worm accredited installer status lets us fit boilers to manufacturers' standards and help secure extended warranties where eligible.
Two decades of experience
Over 20 years of practical plumbing and heating work across New Milton and the New Forest — from period cottages to modern builds and holiday lets.
Checked & vetted
Independent Checkatrade vetting gives landlords and homeowners third‑party reassurance when booking servicing, CP12s or repairs.
Local and responsive
Based in New Milton, we offer prompt site visits, clear communication and reliable scheduling for emergency repairs and planned installs.
Unvented qualified
Qualified for G3 unvented systems, with public liability insurance and practical safety procedures on every job.
— REVIEWS
What Our Customers Say
“Andy is professional and works to a high standard. He is efficient, knowledgeable and happy to advise. We've used his services several times and never hesitate to recommend him. It's very reassuring to have a trustworthy and reliable plumber.”
— Cyril Lanch
Google2026-06-17“Andy did a fantastic job of replacing our boiler. From the very start of our discussions to finally finishing the job, Andy was thoroughly professional throughout. He went out of his way to help us start the work earlier than planned, he researched the best system for us to overcome the low water pressure we have here and during the installation, he worked quickly, cleanly and kept us informed of what was going on and how everything worked. When he had finished it was as if he had never been here.
We are very happy with Andy and the work he has done and will be recommending him to our friends and family. Excellent job.”
— Richard Ward
Google2026-06-17“Andy was excellent. Punctual, polite, efficient, tidy - everything you want in a tradesman. He was recommended by a local company I was using for building work and proved to be a great contact. He installed a new boiler etc. and did all the work in under 2 days.”
— Alan Harvey
Google2026-06-17“We could not recommended Andy enough! We were passed on his details to quote for a complete revamp of our plumbing and heating system for an extension. This initially included a new boiler, tank, water softener and pipework. He was professional, always turned up on time and very tidy.
We also ended up using him for our bathroom installation and the finish is superb. He was patient when we had delivery issues, sometimes working beyond what would be expected to ensure timelines were kept to in order to keep the project moving along.
Will definitely be using him in the future.”
— David Cook
Google2026-06-17“Andy recently supplied and fitted a replacement gas boiler plus other remedial jobs in his usual professional,efficient and friendly manner at a very reasonable price. We were fortunately contacted Andy 12 years ago when we first moved to New Milton. We would not think of using anybody else. Always delighted with his work.”
— John Evans
Google2026-06-17“We are very happy with the work Andy did for us including a new Vaillant boiler, tank, hive system and radiator valve. He suggested possible alternative ideas and products for us to consider. He arrived when he said he would, worked solidly until the work was complete, tidied up after the work, explained use and answered all our questions.”
— Andy Slater
Google2026-06-17— OUR ACCREDITATIONS
Book a safe, reliable heating visit
Call 07904590952 or email info@aarmstrong.co.uk to arrange a boiler service, emergency repair or a free site visit for a new installation across New Milton and neighbouring towns.
Arrange a Visit