I needed to have an ancient outside tap replaced. Called GJS as they are local to me and have good recent reviews.I spoke to Nicola, who was very helpful and friendly. The plumber she booked for me arrived on time and was professional, friendly, and very accommodating.The work was undertaken to an excellent standard and the cost was very reasonable, in my view.I have no hesitation in recommending GJS wholeheartedly. Thank you.******* Update. Booked Simon to sort out issues with my bath and shower outlet pipes. He replaced part of the stack and fit new pipes that work brilliantly. Professional, friendly, approachable, very efficient and tidy. Exceeded my expectations and a job well done. Highly recommended. Thank you.******* Steve attended our property to service our boiler. He was tidy, efficient, and friendly. Very satisfied with the outcome. Thank you******* Another excellent experience. Spoke with the efficient Nicola about replacing my kitchen mixer tap. Simon, the plumber, arrived on time and undertook the work in a timely and professional manner. Very pleased with the result and no hesitation in recommending GJS Plumbing and Heating Services Ltd wholeheartedly.************** Another update. Used GJS once more for our 2025 boiler service. Technician arrived on time and undertook the service. No issues, happy with the outcome, and happy to recommend the company. ************** End April 26. Simon came to replace the lower part of our main stack and renew some other ageing pipes.As always, Simon was very approachable and helpful and explained what he was going to do.The work was completed in a timely and tidy fashion.I have no hesitation in recommending Simon and GJS Plumbing and Heating Services. Thank You once again.
Robert Teer
Excellent boiler service by Gary. Thorough. unobtrusive, punctual and clean. Kept informed at each stage of the process after booking.
Robert Pooley
We recently had a new shower and radiator fitted. The service was second to none. Great workmanship by Simon and excellent customer service. Would highly recommend this company
Trevor Foord
Great service as always 5 star
Wilbert Shirley
A work colleague recommended this company after searching for a local company without going to the big companies, which I'm supporting, my local companies. They are very prompt with communication, and the overall service received was professional and friendly. I would definitely recommend.
David Lewis
Happy to give a 5 star review for the service recently provided by this company. Good coordination of works, regular updatesMany thanks for a job well done.David
Sue Segger
Excellent service. Polite and friendly engineer thank you
Karen Smith
Our boiler broke down Boxing Day afternoon & the next morning (Saturday) Gary discovered a broken fan. The supplier was still closed on Monday but Nicola went above and beyond to source a replacement and it was fitted that afternoon. Excellent service and we're very happy to have a nice warm house again - thank you to all involved !
michael annis
Recently used GJS plumbing would like to say what a pleasure it was to have such a group of professionals carrying out work on my house. I found the office personnel to be polite and extremely helpfull.The fact when you ring them they try to help you resolve minor issues over the phone rather than send an engineer adding cost that could be avoided a rare thing now days.
Frequently Asked Questions
General Questions
What areas do you cover?
We cover Grays, Thurrock, Basildon, Romford, Hornchurch, Southend-on-Sea, Leigh-on-Sea, Benfleet, Rayleigh, Billericay and across the rest of Essex. If you are not sure whether you are in our area, call 07740 187249 and we will let you know.
How long have you been trading?
GJS has been trading for over ten years. Gary started the business after years on the tools working for other people, and he still personally attends the jobs himself.
Are you Gas Safe registered?
Yes. Gary is a qualified, Gas Safe registered gas engineer, and all gas work is carried out to current safety regulations. You are welcome to ask to see the Gas Safe ID card on any visit.
What are your opening hours?
We work Monday to Friday, 08:00 to 17:00, plus alternate Saturdays. For urgent leaks or breakdowns we also run a 24/7 emergency call-out on 07383 615515, so you can reach us any time, day or night.
Do you offer free quotes?
Yes. Quotes are free and given clearly up front with no hidden extras. Call 07740 187249 or email info@gjs.services and we will arrange a time to take a look.
How do you charge for work?
We agree a clear price before any work starts so there are no surprises. GJS has always worked on honest, fair pricing rather than adding work that is not needed.
What payment methods do you accept?
We accept bank transfer and card payments, usually taken on completion of the work. For larger installations we are happy to discuss staged payments.
Which boiler is best?
We usually recommend Vaillant, Ideal or Baxi. They offer reliable performance, good parts availability and strong manufacturer warranties for the money. We will help you choose the right model for your home and budget.
How much does a new boiler cost?
Boiler installations typically range from around £2,000 to £5,000 depending on the boiler chosen, the size of the system and any extra work needed. You get a clear written quote after we have looked at your home.
How long does a boiler installation take?
A straightforward boiler swap is usually completed in a day. A more involved system upgrade can take longer, and we will give you a clear timescale as part of the quote.
Do you remove the old boiler?
Yes. Removing and disposing of your old boiler safely is included as part of the installation. You do not need to arrange anything separately.
Is the new boiler guaranteed?
Yes. New boilers come with a manufacturer-backed warranty, and we register it on your behalf. We will explain the exact cover before you commit.
How often should I service my boiler?
Once a year. An annual service keeps the boiler safe and efficient and helps protect the manufacturer warranty. Autumn is a popular time, ready for winter.
How much is a boiler service?
An annual boiler service is £110 including VAT. We confirm everything when you book and there are no hidden extras.
Can you fix my boiler the same day?
Often, yes. We carry common spares in the van and aim to complete repairs on the first visit. If a part has to be ordered we will tell you straight away and book a quick return.
Do you repair all boiler brands?
Yes. We work on all the major brands including Vaillant, Ideal, Baxi, Worcester and others, and can source manufacturer parts when needed.
Should I repair or replace my boiler?
We will give you an honest view. If a repair is sensible and cost-effective we will do that. If the boiler is at the end of its life we will tell you, so you can make an informed decision.
Why are some of my radiators cold?
Cold spots are often trapped air or a build-up of sludge in the system. We can bleed and balance the system, and recommend a power flush if the circulation is genuinely poor.
What is a power flush and do I need one?
A power flush clears sludge and debris from your heating system to restore circulation and protect the boiler. We will only recommend one if your system actually needs it.
Can you fit new radiators?
Yes. We supply and fit new and replacement radiators, and can move or resize them to suit how you use each room.
Can you upgrade my heating controls?
Yes. Modern thermostats and controls give you better comfort and lower running costs. We can talk you through sensible options for your home.
Do you charge for a quote on heating work?
No. Quotes are free, and you get a clear price before any work begins.
What is a Landlord Gas Safety Certificate?
It is an annual safety check of the gas appliances in a rented property, required by law. We carry out the checks and issue the CP12 certificate so you stay compliant.
How much is a gas safety certificate?
A gas safety certificate is £78, with a small add-on for any additional appliances. We confirm the exact price when you book.
How quickly can you issue the certificate?
We aim to attend within the same week and issue the certificate on the same visit wherever possible.
I can smell gas, what should I do?
Turn off the gas at the meter, open windows, avoid naked flames and electrical switches, and call us. If you are in any doubt, also call the National Gas Emergency line on 0800 111 999.
Do you check appliances for homeowners too?
Yes. We carry out gas appliance safety checks for homeowners as well as landlords, so you have peace of mind your boiler and appliances are safe.
Do you take on small plumbing jobs?
Yes. No job is too small. Dripping taps, running toilets, leaks and outside taps are all welcome.
Can you help with a leak quickly?
We prioritise leaks where we can. Call 07740 187249 and we will get to you as soon as possible within our working hours.
Do you fix low water pressure or hot water problems?
Yes. We diagnose pressure and hot water issues, explain the cause, and give you an honest, fair-priced fix.
Can you plumb in appliances?
Yes. We can plumb in washing machines, dishwashers and outside taps, and make sure everything is leak-free before we leave.
Will you give a price before starting?
Always. You get a clear price up front and a tidy finish afterwards, on every job.
Do you fit full bathrooms?
Yes. We handle the plumbing and heating side of a full refit or a single suite replacement, making sure water, drainage and hot water all work properly.
How long does a bathroom take?
It depends on the scope, from a couple of days for a suite swap to longer for a full refit. We give you a clear timescale with the quote.
Do you supply the bathroom or do I?
Either works. We can advise on suitable suites and fittings or work with what you have chosen. We will be clear about what is included in the quote.
Will the new shower have good pressure?
We check and sort pressure and hot water before anything is boxed in, because that is the part that is hard to fix later.
Is the quote free?
Yes. Bathroom quotes are free and given clearly up front so you know exactly where you stand.
