Welcome to Sam Rainbow Plumbing & Heating
Trusted heating experts in North Wales with 20+ years of excellence.
From boiler installations and servicing to emergency repairs and gas safety certification, we’re your local specialists, based in Tywyn and serving homes and businesses across the region.
Why Choose Us?
Decades of Expertise
Sam Rainbow has 20 years of plumbing, gas, and heating experience, along with Gas Safe certification and quality training.
Safety & Peace of Mind
Fully Gas Safe registered, we ensure every boiler and gas system is safe, compliant, and reliable

Swift Emergency Response
Available 24/7, we prioritise rapid response—whether it's a broken-down boiler or a burst pipe, we're ready with urgent, dependable solutions
Transparent Pricing
Clear guidance and full quotes in writing—no surprises, just fair, competitive pricing and trusted advice every time
Boiler Installations
From modern replacements to efficient upgrades, we guide you through the best options tailored to your home and budget—focusing on energy savings and long-term value.


Boiler Repairs
Fast, reliable repairs by a qualified gas engineer. We diagnose issues efficiently and resolve them to restore comfort to your home.
Boiler Servicing & Maintenance
Protect your investment. Regular servicing enhances performance, extends lifespan, and keeps your heating system safe and dependable.


Gas Safety Checks
Mandatory, comprehensive gas safety inspections that meet regulatory standards. Your safety is our top priority.
Our Promise
Local & Reliable
Based in Tywyn, focused on delivering exceptional service across North Wales.
Responsive
Quick turnaround for quotes and emergency call-outs—24/7 availability.
Customer Excellence
Rated “Excellent” on Google reviews for professional, and trustworthy service .

Meet Sam Rainbow
Owner & Lead Engineer
With over 20 years of specialist experience, it seems a long time ago that I started my plumbing journey at Worcester College of Technology.
Keen to be the best in my field, l completed 4 years of on the job training while attending college each week where I achieved all my plumbing qualifications. Later I went on to become Corgi registered which today we know as the Gas Safe Register.
I get a huge amount of satisfaction out of completing my work to a high standard, something I learnt early on while working with my father who was a house builder.
Originally from the West Midlands, I now live happily in Tywyn on the west coast of wales where I continue my mission to provide outstanding plumbing and heating services to the local community and local business.











