One Call Building Services ( Herts ) Ltd Logo

One Call Building Services ( Herts ) Ltd

  • Builder
  • Bathrooms
  • Electrician
  • Bricklayer

South Mimms, Potters Bar, Hertfordshire

Mr Paul Brennan

+Approved member since 2016
Call07488 827562

Skills & expertise

  • Builder
    • Agricultural Building
    • Basement / Cellar Conversions
    • Brick / Concrete Structural Repairs
    • Car Ports
    • Cladding
    • Concrete Garages
    • Concreting
    • Core Drilling
    • Demolition
    • Diamond Drilling
    • Emergency Builder Service
    • Equestrian Stable
    • Extensions / Conversions
    • Fire and Flood Renovation
    • Foundations
    • Garage Conversions
    • Garden Studios
    • General Building
    • Green Oak Framing
    • Heritage Property Specialist
    • Insurance Claim Specialist
    • Loft Conversions
    • Mastic Sealant
    • New Builds
    • Partition Walls
    • Period Property Restoration
    • Project Management
    • Refurbishments
    • Repair and Listed Building Specialist
    • Steel Work Design
    • Stretched Ceilings
    • Structural Design
    • Structural Steels
    • Suspended Ceilings
    • Sustainable Construction
    • Tree Houses
    • Wall Tie Replacements
    • Warehouse Racking
    • Workshop Design / Construction
  • Bathrooms
    • Bath Resurfacing
    • Bathroom Cladding
    • Bathroom Designer
    • Mastic Sealant
    • Bathroom Fitter
    • Disabled Bathrooms / Showers
    • Emergency Bathroom Service
    • Wet Rooms
    • Bathroom Supplier
  • Electrician
    • Electric Boiler Installation
    • Electric Boiler Servicing / Repair
    • Electric Cookers
    • Electric Gate Wiring
    • Electric Heating
    • Electric Radiators
    • Electric Showers
    • Electric Smart Thermostats
    • Electric Stoves
    • Electrical Contractors
    • Electrical Heater Repair
    • Electrical Installation Condition Report - Safety Checks - EICR
    • Electrical Under Floor Heating Installation
    • Electrical Under Floor Heating Repair
    • Emergency Lighting
    • Energy Efficient Lighting
    • Fault Finding
    • Electric Sockets
    • Fuseboard / Consumer Unit Installation
    • Fuseboard / Consumer Unit Repair
    • Garden Lighting
    • Hot Tub Wiring
    • Immersion Heater Installation
    • Immersion Heater Repair
    • LED Lighting
    • House Rewiring
    • Smoke Alarms
    • Storage Heating
    • Emergency Electrician Service
  • Bricklayer
    • Repointing
    • Brickwork
    • Flint / Stonework

Company info

One Call Building Services (Herts) Limited was formed in 2013 by Paul Brennan with a view to provide an all encompassing building and maintenance service for property owners and users alike.

With over 35 years experience in the building industry working in new build, maintenance of existing, domestic, commercial buildings and structural repairs also working on major infrastructure projects nationwide.

One Call Building Services (Herts) Limited' s core business is the maintenance and refurbishment of both domestic and commercial buildings. Dealing with jobs of all sizes to meet the needs of our customers from dripping taps to complete refurbishments.

We have a team of time serviced trades men who are skilled in their field and always willing to offer advice.

Contact details

Reviews Summary

Average score based on 21 reviews in the last 12 months
121 Total Reviews

The reviews below represent customers' views and not the views of Checkatrade

Quote Accuracy
(20 Reviews)

Customer Reviews


Redo main and en-suite bathrooms

Verified Review

Very pleased with the result although it took much longer than I’d been told. Kris and George were particularly helpful as was Nicola in the office

Location: NW2
Reviewed in: March 2023

Refurbishing bathrooom, painting 4 rooms, putting new lights and testing wiring in ground floor flat

Verified Review

From the first meeting with Chris who prepared the original estimate to Paul who managed the job, we have been pleased with the professionalism and standard of the work carried out by One Call. This includes the work done by Kris (Plumber), George (Tiler), Tony (Painter) and Roberto (Electrician). The support staff in the office Nicola and Teresa were very efficient and always a pleasure to deal with. We were also impressed with George on the day he came round to fit grab rails and hang pictures. He worked very efficiently and effectively, and was also very pleasant to be with.

Location: WD6
Reviewed in: March 2023

Replacing Kitchen taps

Verified Review

Excellent promp service

Location: WD7
Reviewed in: February 2023

Repair and refitting of bathroom suite following a major league

Verified Review

Excellent people. Communication was very easy, work booked in, hard-working people got the job done and were pleasant to deal with.

Location: AL4
Reviewed in: January 2023

Bay window re-construction

Verified Review

One Call did a great job of rebuilding our bay structure and installing the windows above and below. Eamonn led the team well, finished on time, right on budget and to a great quality standard. I will be using them again for sure.

Location: E4
Reviewed in: December 2022

Full bathroom renovation

Verified Review

A professional company with all work carried out to a high standard.

Location: CM2
Reviewed in: November 2022


  • Domestic Work
  • Commercial Work
  • Free Estimates (excl. Insurance)
  • 24 Hour Call-out
  • Insurance Work Undertaken
  • Cards Accepted


Works in

North London, Middlesex, Essex and Hertfordshire

Vetting Status

Fully Vetted Trade

Company Type
Ltd Company
Checkatrade T&Cs
Approved member since 2016
Trading address verified
ID Checked
Checkatrade Standards
Company Status
Limited Company Checked
Yes: Registered as a Company One Call Building Services (Herts) Ltd No: 08689791
VAT Registered
Yes: 182 5692 80
Company Type
Ltd Company
Business Owners
Mr Paul Brennan
Insurance Details
Public Liability Insurance
Current: Verified 27/04/2022
Insured By
Eaton Gate MGU Limited

Accreditations and Memberships

SME Greater London Enterprise Award Winners - 

Best Building Maintenance Service 2017 & SME Excellend Award for Reactive Maintenance 2017

Environment Agency registered  

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