Hiwa Plumbing
Southampton, Hampshire
Checkatrade member since August 20185
Services
- Air Source Heat Pump Installation - ASHP
- Emergency Central Heating Repair
- Gas Boiler Installation
- Gas Boiler Servicing / Repair
- Gas Central Heating Installation
- Gas Central Heating Servicing / Repair
- Gas Cooker Installation
- Gas Safety Checks - CP12
- Smart Thermostats
- Bathroom & Kitchen Plumbing
- Blocked Baths
- Blocked Sinks
- Blocked Toilets
- Emergency Plumber Service
- General Plumbing
- Pipe Fitter
- Plumbing Repairs
- Power Flushing
- Radiator Installation
- Radiator Repair
- Radiator Thermostat Valve Installation
- Radiator Thermostat Valve Repair
- Shower Installation
- Shower Repair
- Tap Repair
- Thermal Dynamics
- Underfloor Heating Installation
- Underfloor Heating Repair
- Water Leak Detection
- Water Mains Specialist (Pipe Replacement, Moling and Lead Pipes)
- Water Pumps Installation
- Water Pumps Repair
- Water Supply Pipe Repairs
Customer Reviews
Write a review9.84 /10
Based on 72 reviews over the past 12 months
Quality of work
9.79
Reliability
9.86
Communication
9.87
What customers are saying
AI-generated from customer reviews over last 24 months
Customers consistently praise this trade for being extremely responsive, professional, and efficient. They are frequently described as friendly and reliable for a variety of boiler and plumbing jobs.
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Reviews (431)
- MMalcolm P
9.67 I was contacted quickly after posting the job and the appointment was easy to make.
Posted 6 days ago
Job location: SO18Boiler service was carried out in a very professional and efficient manner. Thank you. - DDavid H
10 Excellent Service.
Posted 1 week ago
Contacted Hiwa about disconnecting my existing gas cooker, which was being delivered later in the week, and installing the new one. On the day that it was delivered I called them at 11:30 and by 13:00 the job was done and they had left. Absolutely brilliant. Just wish that more tradespeople were like them. Recommend Hiwa 100%.Verified reviewerJob location: SO50 - AAnnie R
2.67 A lack of investigation
Posted 10 December
Job location: SO18This trades man did not fix the issue and did not investigate the thermostat in which the batteries had died, so causing the heating not to start. He proceeded to tell me it was my PCB which would cost me hundreds of £ and I should really have a new boiler for which he would quote.Response from Hiwa Plumbing
This home owner did not let me do my job. The first thing I tried was the thermostat but she asked me not to spend time on it as the previous engineer a while ago had been there and it had not been the case. After speaking to Glowworm the manufacturer they said surely the pcb needed replacing. The home owner provided wrong information and did not let me do my job.
- DDenis S
10 Service Boiler
Posted 08 December
Done perfect jobVerified reviewerJob location: SO50 - Rrichard h
10 Serviced my boiler and flushed the system
Posted 02 December
Mo was very thorough did a great job quick, clean and efficient.Verified reviewerJob location: SO16Response from Hiwa Plumbing
Thank you very much for your feedback. Kind regards Mo
10 Prompt, efficient service for our boiler.
Posted 21 November
Asked on Checkatrade for a person to fix our boiler that wasn't keeping pressure, within a few minutes Mo called and was able to attend and same the same day. Mo identified the issue and fixed it straight away. Highly recommend, thank you Mo!Verified reviewerJob location: SO14Response from Hiwa Plumbing
Thank you very much for your positive feedback. Kind regards Mo
Photos
Company Info
Owner
Mr Mohammad Tahmasebi
Sole Trader
7 years on Checkatrade
VAT Registered
No
Hi! I am Mo and I do boiler installations, service & maintenance, fault finding and landlord safety checks. I have been running my own business for many years and am experienced in the industry. I take jobs in Plumbing, Central heating, Whole Bathroom & Shower room renovation including Tiling and many more. Please contact me for more job details.
Accreditations and awards

This trade passed up to 12 Checkatrade vetting checks
Member since August 2018
Individual checks
Identification
Proof of address
Financial
Qualifications and accreditations
County court judgement
Open source media
Business checks
Customer Reviews
Company trading history
Company duplication
County court judgement
Enhanced business check
Director checks
