Mastic Sealing in Hanwell
Mastic sealing in Hanwell, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.
- Draught complaints from residents or tenants
- Failed external movement joints
- Damaged joints in communal entrances and corridors
Mastic sealing near Hanwell
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Mastic sealing in Hanwell
We work for building owners, landlords with commercial or block portfolios, managing agents and housing associations. A planned, building-by-building programme often works better than reacting to each complaint and we quote and schedule each building in turn. We work on shopfronts below residential blocks, communal kitchens and washrooms and communal entrances and stairwells, and what we’re called in for most is draughts at frames across a block and water getting in round frames after rain. A single leaking joint is often how a building in Hanwell first comes to us: we check the joints around it and give you an honest view of what needs doing now and what can wait.
London’s ULEZ covers every borough, and parking and loading rules vary street by street. For block-wide work, a place to park and store materials saves time on every visit.
Every job is signed off with a 12-month guarantee. It’s a plain promise: if our work fails within that year, we put it right.
- Location
- Hanwell (W7, W13, UB2)
- Wider area
- Greater London
- Cover
- 12 months on our workmanship
- Quotes
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Updated
- 3 November 2026
Hanwell: questions and answers
We manage a building near Hanwell station. Can you help?
Yes, we work for agents, landlords and housing associations with blocks of every size. Send the address, photos of the elevations and your access arrangements, and we will give a fixed quote.
Is Chadha Industrial Estate, near Hanwell, within your area?
Yes. Estates, retail parks and business parks around Hanwell, Chadha Industrial Estate among them, are all within reach. A few photographs and the unit address let us price the work.
How do you reach windows on upper floors?
It depends on the building. We agree access with you at quote stage so the fixed quote reflects it.
How long does a typical visit take?
We plan the time on site around your programme and access. We’ll give you an estimate of time on site when we quote.
Can you work to our specification?
Yes. The specification and the manufacturer’s installation guidance are what we work to, and we raise anything unclear before work begins.
Do you supply RAMS and insurance details?
We’re CHAS accredited, a Constructionline member and carry public liability insurance. Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.
Can you plan resealing across several buildings?
We can. Each building is inspected, quoted and scheduled in turn, and the programme can start with the worst.
Why act early in Hanwell
Open external joints let water into walls and around frames. That can lead to damp, staining and damage to finishes and those cost far more to put right. Getting scaffold, permits or access booked in Hanwell takes effort, so it makes sense to deal with every failing joint while access is in place.
We don’t publish prices, because the scope varies so much from one building to the next. Call for a quote and we’ll price your job on its own details.
Why choose Mastic Doctor in Hanwell
- Standard and matched colours in many product ranges
- Over 20 years of commercial sealing
- Colours confirmed for the specified product
- Joints cleaned back to sound surfaces
Take a look at what affects the cost and our accreditations and insurance.
Keeping the joints sound
A few simple habits keep the new joints working:
- Include mastic in your cyclical inspections
- Prioritise elevations facing the weather
- Group repairs into a planned programme
- Ask residents or tenants to report leaks and draughts early
Protect entrance and corridor joints from knocks where possible. Knocks cause many early failures in communal areas.
Left open, joint edges in render, brick or frames can deteriorate. Once that happens, repairs come before resealing and the job grows.
Cost factors for mastic joints
We price every job individually. The main factors are:
- Access and working height
- Joint width, depth and condition
- The site’s rules and procedures
- Whether old sealant has to be cut out first
Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits.
What to include in your enquiry
A few photographs plus some basic facts will normally do. It helps to include:
- Photos of the joints, close up and from further back
- How the joints are reached, and at what height
- Drawings or a marked-up plan, if available
- Specification clauses that apply
Every quote starts with the facts: the joints involved, quantities, access and the product called for. Share whatever details you have and we’ll fill any gaps with a visit.
How the job changes by surface
Commercial and mixed-use buildings
Landlords with commercial portfolios have shopfronts, office entrances and external joints to look after. We work across portfolios on a planned basis.
Window and door perimeters on blocks
Frames vary from uPVC to aluminium and timber, so the grade we pick has to bond to frame and wall alike. Colours are confirmed for the product used.
Planned mastic for Hanwell portfolios
For a London block, the agent or landlord typically handles notices to residents and access to flats. Our programme follows the access you agree with residents.
Property owners at sites such as Chadha Industrial Estate (0.6 miles south of Hanwell) can have mastic renewed between lettings. For a school such as St Joseph's Catholic Primary School, perimeter mastic on windows and doors is a holiday job. If you look after a block within reach of Hanwell station, under half a mile north of Hanwell, frame and balcony mastic can be renewed on one programme.
Hanwell is about 1 mile west of Ealing, in Greater London. Looking for mastic sealing in Hanwell? We can help, as we do across Greater London. Hanwell is one of 764 places we cover in Greater London for mastic joints. We also cover London, some 10 miles away.
Business premises anywhere in W7, W13 and UB2 are within our area for mastic joints. Among the streets we cover are Park Road, Green Lane and Felix Road. You will find Hanwell on or near the A4001, so getting applicators and materials to site is simple. Sites close to Hanwell are covered too, including West Ealing (1 mile west), Ealing (1 mile east), Dormers Wells (1 mile north-west), South Ealing (1 mile south-east) and Pitshanger (2 miles north-east). Bigger towns within reach include London (10 miles east), City of Westminster (8 miles east), Marylebone (8 miles east), Kensington (6 miles east), St Pancras (10 miles east) and Shoreditch (11 miles east).
What’s near Hanwell
Recent enquiries here include premises near Drayton Manor High School, Cuckoo Schools and Drayton Green. Hanwell has its own railway station: Hanwell station. Nearby you will also find Ealing Hospital (less than half a mile west) and Gunnersbury Park House - Large Mansion (2.3 miles east). For a walk, there’s Middle Lake and Castlebar Hill.
Diagnose, treat, sign off
We bring the products specified for the job, along with primers and backing rod. Any old material is cut back to clean, sound faces, the manufacturer’s primer is applied where it’s called for, and each bead is tooled to a neat concave finish. The ULEZ covers the whole of Greater London, and parking near a job is rarely simple. If there’s a loading bay, a car park or a permit we can use, tell us when you send details.
- We inspect the joints, building by building, and record what has failed and why.
- We send a fixed quote that sets out the joints, the products and the programme.
- Dates, areas and access are agreed so residents or tenants can be told in advance.
- Failed mastic is removed and the faces taken back to sound, dry material.
- Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
- Completed joints are inspected and carry a 12-month workmanship guarantee.
What we need from you
- Tell staff and tenants when we will be in
- Tell us your opening times and when work is allowed
- Tell us which areas need to stay in use
Ask for a quote
A handful of photographs and a postcode is the fastest way to a quote. Send them through the quote form, or ring 01277 525 020 or email the details over if you’d rather talk the job through.
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Doing it in-house
A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
Redoing a failed joint usually costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.