Mastic sealing for building owners and managing agents in Clement Street, Kent
Sealant work in Clement Street for main contractors, managing agents and facilities managers: mastic sealing for building owners, managing agents and housing associations, quoted at a fixed price.
- Damaged joints in communal entrances and corridors
- No planned programme for sealant
- Failed external movement joints
Mastic sealing near Clement Street
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Site staff or a sealant specialist?
General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.
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.
How we handle mastic sealing in Clement Street
Blocks are lived in, so access and disruption have to be thought through. The sequence, the areas and the dates are settled with you so you can let residents know what is happening. Communal entrances and stairs stay usable while we work. If you have mastic failing across several blocks on an estate and patchy repairs in mismatched sealant, we can put it right. Searching for sealant specialists in Clement Street? We have been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.
Around smaller places like Clement Street, older walls fitted with newer windows are a familiar sight. The mastic needs to suit an irregular masonry face and the look of the building.
We sign every job off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.
- Where
- Clement Street (BR8)
- Region
- Kent
- Cover
- 12 months on every job
- Quote
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Honest limits
A proper diagnosis includes knowing what sealant can’t do. We will tell you if the real problem is one of these:
- Roof leaks, gutters or failed flashings that aren’t sealant joints
- Leaks through the frame itself rather than the perimeter
- Old mastic suspected of containing asbestos, which must be tested and dealt with by a specialist first
If in doubt, call the office on 01277 525 020 or email the details over and we’ll say what we think before you book.
What we seal
- External wall and movement joints
- Communal kitchens and washrooms
- Balcony and threshold joints
- Communal entrances and stairwells
- Shopfronts below residential blocks
- Window and door perimeters on blocks
Why deal with it now?
Looking at mastic during planned maintenance costs little. Leaving it until there’s a leak turns it into reactive work with less control over timing. Halls, stores and units around places like Clement Street may not be checked every day, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.
The specified product makes a difference, as does the preparation each joint needs, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.
Why us?
- Joints cleaned back to sound surfaces
- 12 months’ guarantee on every job
- Commercial sealant work since 2005
- Health and safety: CHAS accredited
Take a look at our cost guide or our accreditations.
Places near Clement Street
More services for Clement Street
How a job runs
Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. Jobs in and around smaller places like Clement Street are typically planned as a single visit, so photos and measurements up front really help. Then the right materials arrive with us.
- First we look at the mastic on each building and note what needs replacing.
- 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.
- Old sealant is stripped and each face prepared back to firm 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
- For older buildings, check the asbestos register before work
- Point out parking and an unloading spot
- Tell staff and tenants when we will be in
Quotes
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we’ll return a fixed quote that you can work with. For a chat about it beforehand, call 01277 525 020 or use the quote form.
Read more
Block-wide mastic in Clement Street
The 2 miles around Clement Street include five care or nursing homes. For owners and operators of care buildings, window perimeters and external joints are best renewed in planned phases around residents. The South East is one of the drier parts of the UK. External mastic still waits for dry faces and the right temperature, while the elevations that take the most sun tend to show hardened mastic first.
Older community buildings, Church of Saint Paul among them, often have frames of mixed ages whose mastic varies. Schools and community buildings such as Sutton-At-Hone Church of England Primary School need frame and external mastic kept sound like any building. Student blocks close to universities like University of Greenwich (3.1 miles north-east of Clement Street) are easiest to work on between tenancies.
Clement Street is about 2 miles south of Dartford, in Kent. Clement Street sits inside our coverage and the rest of Kent, with the same fixed quotes and 12-month guarantee as everywhere else. Clement Street is one of 931 places we cover in Kent for mastic joints. Our London page has more on work in that area, about 14 miles away.
Commercial sites across BR8 are covered. We also cover Hawley (1 mile north-east), Sutton at Hone (1 mile east), South Darenth (2 miles south-east), Darenth (2 miles east) and St Margarets (2 miles east). Bigger towns within reach include Sevenoaks (9 miles south), Gravesend (7 miles east), Tonbridge (15 miles south), Northfleet (6 miles east), Kings Hill (13 miles south-east) and Swanscombe (4 miles north-east).
Around Clement Street
We work on buildings around Dartford Heath, Wilmington Academy and The Plough pub and the streets around them. For rail, the closest station is Farningham Road station, about 1.3 miles south-east of the centre. Nearby you will also find Eynsford Castle (3 miles south) and West Hill Hospital (2.2 miles north). Green spaces nearby include Wansunt Pit.
Your questions answered
Does your area include sites such as Button Street Business Park, near Clement Street?
Yes. Our area takes in Clement Street and its surroundings, with estates and business parks such as Button Street Business Park included. To start, just give us a call on 01277 525 020 or email drawings and photos with the unit, the joints involved and your access times.
Do you work in occupied care homes around Clement Street?
Yes. We work around residents’ routines, a room or two at a time. Any site rules, from signing in to infection control, are agreed before we start.
How long does a job like this take?
The duration is planned around your programme and the access we’re given. We will give you an estimate of time on site when we quote.
When is resealing likely to be due?
There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular checks let you plan resealing before leaks or damage.
Do you work to architects’ specifications?
Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it.
Is it fine to apply new sealant on top of old?
No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.
Do you work with property factors and landlords?
Yes, block and estate work is a core part of what we do. We work through buildings in a planned order with dates agreed in advance.
Work for main contractors and building owners
We work for building owners and managing agents on everything from one building to a spread of sites around Clement Street. One quote can cover more than one site, so there’s one set of paperwork to deal with.
Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, and each stage is agreed with your contact.
How the quote is worked out
Your fixed quote is built from the real scope. It allows for:
- How much there is to seal
- Whether the work must be split into stages
- Site requirements such as inductions and permits
- Removal of failed or old sealant
A quote for mastic joints depends on quantities, condition and access, and any specification that applies. Ask us for a fixed quote.
Sending details for a quote
However big the job, the same details help:
- Approximate linear metres or a joint schedule
- Your programme or deadline
- The asbestos register, for older buildings
- Access details, including height
A handful of photos and a postcode is the fastest way to a quote. Send them through the quote form, or call the office on 01277 525 020 or email drawings and photos to discuss it first.