Mastic sealant contractors in Kemsley Street
Mastic sealing in Kemsley Street, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.
- Worn sealant at communal door frames
- A mix of products and colours from past repairs
- The same joint failures repeated across a portfolio
Mastic sealing for Kemsley Street sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
About our mastic sealing in Kemsley Street
Different joints need different sealants. Window perimeters and external joints often take a low-modulus neutral-cure silicone, and MS polymer sealants stick well to many substrates and often take paint, and colours are confirmed for whichever product is used. Most enquiries involve window mastic that has split and shrunk and complaints coming in block by block, on communal entrances and stairwells, window and door perimeters on blocks and balcony and threshold joints. Whoever orders the work in Kemsley Street, the brief is usually the same: a clear scope, tidy work and joints that don’t fail again.
For buildings around smaller places like Kemsley Street, we group work so one trip covers it. Send photos of the frames and joints and we will give a fixed quote.
Every job we finish is backed by a 12-month workmanship guarantee. If our installation lets you down in that time, we return and fix it.
- Location
- Kemsley Street (ME7)
- Region
- Kent
- Cover
- 12 months on every job
- Price
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Site staff or a sealant specialist?
The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.
Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
Also near Kemsley Street
Also in Kemsley Street
Diagnose, treat, sign off
Where the site stays busy, the work is phased so only one area is out of use at a time. Each area is protected, prepared and sealed, then reopened once the sealant allows before the next one starts. If others near Kemsley Street need work, visits can be combined. A fixed quote is given before anything starts.
- Each block or building is walked and the failed joints recorded with the likely cause.
- You get a fixed quote, priced per building where that helps your budgeting.
- The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
- 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.
Before we start on site
- Have the specification and drawings to hand
- Make sure the joints can be reached
- Point out parking and an unloading spot
Quotes
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, call the office on 01277 525 020 or use the quote form.
Advice
Kemsley Street: questions and answers
Can you work at a site such as Hempstead Valley Shopping Centre, by Kemsley Street?
Yes. We cover Kemsley Street and the area around it, including industrial estates, business parks and retail parks such as Hempstead Valley Shopping Centre. Photos and a short description are enough for a first look.
Do you work for managing agents with blocks near Rainham (Kent) station?
Yes, and several blocks can go on one quote. Give us the building’s details and say how residents are notified, and we’ll quote and plan to suit.
Do you work in Kemsley Street?
Yes. We take on work across Kemsley Street, and the same phone number covers every area.
How long does a job like this take?
The duration is planned around your programme and the access we are given. We will give you an estimate of time on site when we quote.
Is it fine to apply new sealant on top of old?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, since fresh sealant will not bond reliably to aged material.
Can you take on resealing for a block portfolio?
Yes. Most of our mastic sealing is for agents, factors, housing associations and portfolio landlords, and we quote building by building or as a programme.
Can weather delay the job?
It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.
Why deal with it now?
Adding sealant to cyclical maintenance is an easy win. Leaving it until there’s a leak turns it into reactive work and less choice about when. For buildings around smaller places like Kemsley Street, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Renewing joints in good time avoids the problem.
Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote, and you’ll have a fixed figure to work with.
What you get with us
- Sealing commercial buildings since 2005
- Specification-led, product-correct work
- 12 months’ guarantee on every job
- A Constructionline member, so easy to vet
Take a look at our cost guide and how we’re accredited.
Block-wide mastic in Kemsley Street
Central London is about 32 miles from Kemsley Street. Around the capital’s commuter belt, managing agents look after many blocks close to stations and town centres. Kemsley Street is in the South East, one of the UK’s drier regions. Outside work still depends on dry joints, and south- and west-facing elevations, which take the most sun and rain, often age first.
If you look after a block within reach of Rainham (Kent) station, 2.5 miles to the north-east of Kemsley Street, frame and balcony mastic can be renewed on one programme. Owners of student blocks near University for the Creative Arts - Rochester, 4.5 miles to the north-west of Kemsley Street, can schedule frame and external mastic for the summer vacation. If you own or manage units on a site such as Hempstead Valley Shopping Centre (0.9 miles north-west of Kemsley Street), failed mastic on frames, door surrounds and external joints can be dealt with unit by unit.
Kemsley Street is about 3 miles south of Gillingham, in Kent. Commercial clients in Kemsley Street can call on us for mastic joints, as part of our coverage of Kent. Our Kent coverage takes in 931 places, large and small. Our London page has more on work in that area, about 32 miles away.
Postcode districts covered here: ME7 for mastic joints. Close to Kemsley Street, our area also takes in Bredhurst (1 mile west), Scragged Oak (1 mile south), Dunn Street (1 mile south-west), Park Wood (1 mile north-east) and Lower Cox Street (1 mile south-east). Further afield, our area takes in Maidstone (5 miles south-west), Sittingbourne (6 miles east), Gravesend (11 miles north-west), Faversham (13 miles east), Northfleet (12 miles north-west) and Minster (11 miles north-east).
What’s near Kemsley Street
Locally, jobs take us to sites close to Levan Strice and Rainham School for Girls, among other places. The closest station to Kemsley Street is Rainham (Kent) station, about 2.5 miles north-east of the centre. A little further out are Medway megaliths (4 miles west) and Allington Castle (4.3 miles south-west). Open spaces near Kemsley Street include Detling Hill and Burham Down.
What affects the price in Kemsley Street
We price every job individually. The main factors are:
- Backing rod, priming and other preparation
- Whether old sealant has to be cut out first
- The product specified
- Phasing around occupants
Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well.
Details that help us quote
The more we know, the firmer the quote. Helpful details to send:
- Specification clauses that apply
- Whether an asbestos survey exists
- Approximate linear metres or a joint schedule
- Whether the building will be occupied during the work
A handful of photos and a postcode is the fastest way to a quote. Upload them with the quote form, or call 01277 525 020 or use the quote form if you’d rather talk the job through.
Owners, agents and contractors
CHAS accredited and a Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.
Blocks and communal areas make up much of the work for housing associations and agents. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.
Looking after the joints
To get the most from the new sealant:
- Keep a record of when each building was resealed
- Make mastic part of routine maintenance checks
- Start inspections with the most exposed faces
- Plan resealing building by building rather than complaint by complaint
Our workmanship is covered for 12 months, so report any failure in that time. After that, regular inspection keeps the programme on track.
Leaks at window perimeters spoil finishes and can affect frames. Early resealing is far simpler than repairs inside.