Expert Heating Engineers in Letchworth Garden City & North Hertfordshire

 
 
 
 
  
 
4.9
 
4.9
 
Top Rated Service
 
 
 Verified by Trustindex  
 
Top Rated Service
 
 
 4.9 Excellent rating Last 12 months 
 
 New reviews collected regularly Recent review activity detected 
 
 Responds to customer reviews 89.2% response rate within 48 hours 
 
 Verified by Trustindex Based on real customer reviews Learn more 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 Posted on Google  
 
  
 
 
 Robert Pedge 
 
7 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. 
Complete bathroom renovation in Letchworth, Alex did a fantastic job, no shortcuts or compromise on quality at a very competitive cost.
  
 
 
 
 
 
 Posted on Google  
 
  
 
 
 Junayd Nackvi 
 
23 August 2026
 
 
 Trustindex verifies that the original source of the review is Google. 
Alex did an excellent job with the plumbing for our house extension including a boiler move. He went above and beyond to ensure everything was done to a high standard.
  
 
 
 
 
 
 Posted on Google  
 
  
 
 
 Chin Miang Tory 
 
19 July 2026
 
 
 Trustindex verifies that the original source of the review is Google. 
Alex did a splendid job replacing my leaky shower tiles with shower  panels. The quality of his work is of the highest standard. A real professional at his job. So pleased to have found Blue Whale Plumbing
  
 
 
 
 
 
 Posted on Google  
 
  
 
 
 Rachel Kelly 
 
18 July 2026
 
 
 Trustindex verifies that the original source of the review is Google. 
We were impressed with the knowledgeable advice on the best boiler for our house and how to find a new position for the boiler, as the old position was not suitable for current standards. Alex did a very professional job of fitting the new boiler, and we were particularly pleased with the very tidy job he did of making good both around the new boiler and where the old boiler had been.
  
 
 
 
 
 
 Posted on Google  
 
  
 
 
 Angela Rickner 
 
8 July 2026
 
 
 Trustindex verifies that the original source of the review is Google. 
Work carried out in an efficient manner. Excellent job and excellent value.
  
 
 
 
 
 
 Posted on Google  
 
  
 
 
 Chris Balmforth 
 
23 June 2026
 
 
 Trustindex verifies that the original source of the review is Google. 
Another great job by Alex, fitting new taps, a shower screen and bath panel. Highly recommended!
  
 
 
 
 
 
 Posted on Google  
 
  
 
 
 Avril Beesley 
 
22 June 2026
 
 
 Trustindex verifies that the original source of the review is Google. 
Alex did a really good job plumbing in my new kitchen. He had good advice for me and was reliable and efficient.
I highly recommend Blue Whale Plumbing
  
 
 
 
 
 
 Posted on Google  
 
  
 
 
 Assessment Qualification 
 
6 April 2026
 
 
 Trustindex verifies that the original source of the review is Google. 
I have received three service visits from Alex at Blue Whale Plumbing and have been consistently impressed by the quality of work, integrity and very fair costing that Blue Whale provide. I recommend them without reservation.
Brian S
  
 
 
 
 
 
 Posted on Google  
 
  
 
 
 Hannah Moore 
 
24 March 2026
 
 
 Trustindex verifies that the original source of the review is Google. 
Exceptional service — highly recommended.

Alex carried out a complex job, removing an old boiler and gravity‑fed water system and upgrading it to a new combi system. The work involved challenging pipework alterations and removing old water tanks, including one in a very cobweb‑filled loft. Alex completed everything expertly, efficiently and with great care.

He consistently went above and beyond to ensure the job was finished to a high standard. It’s rare to find a tradesperson who takes such personal pride in their work — it genuinely felt as though he was working on his own home. He also provided helpful advice about other areas of the house.

We obtained a range of quotes, and this one was fair and competitive. Considering the complexity of the work and the standard it was completed to, we felt it offered excellent value. We’re extremely pleased with the result, and Bluewhale will be our first choice for any future work.
  
 
 
 
 
 
 Posted on Google  
 
  
 
 
 John Dale 
 
24 February 2026
 
 
 Trustindex verifies that the original source of the review is Google. 
Alex has completed a superb job to upgrade 2 showers to provide pumped pressure as opposed to previously gravity fed in my 1930s house involving a lot of difficult pipework alterations in a  professional clean and personable manner.The quotation was detailed and the price fair.We are extremely pleased with the outcome and Bluewhale are now our go to plumbing service for future work and would highly recommend them.