Greater London · England
Commercial sealant contractors in SE20
Commercial sealant, construction mastic and joint sealing across SE20, from Penge, Anerley and Beckenham, with a fixed quote before we start.
Need sealant work in SE20?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Towns and villages in SE20
Our services across SE20
- Commercial washroom and wet-area sealing
- Facade and window perimeter sealing
- Commercial sealant contractors
- Industrial and floor joint sealing
- Mastic sealing for building owners and managing agents
- Expansion and movement joint sealing
- Fire-rated sealing and fire stopping
- Coloured and colour-matched sealant
- Construction and new-build mastic
- All services
Let us know the job and your postcode for a fixed quote: speak to us on 01277 525 020 or use the quote form.
Neighbouring districts
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Areas we cover
How commercial sealant contractors works in SE20
How long a joint lasts is decided before any sealant leaves the gun. Old silicone gives new sealant nothing to grip, so every trace of it is removed, then both faces are cleaned back to sound, dry material with no dust or grease on them. Where the sealant maker specifies a primer for that substrate, it goes on before the new bead, and a backing rod limits the depth to give the sealant room to work. The enquiries we see most involve untidy joints in a reception, shop floor or lobby and external beads that have gone brittle and cracked, across external facade joints, window and door perimeters and movement joints in walls and floors.
The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. Then we strip out anything that has failed, prepare every joint and seal it.
- First, details come to us: photos, drawings or a schedule of the areas.
- Next comes a diagnosis and a fixed quote.
- Before anything is cut out, we agree access, timings and sequence.
- Failed sealant is cut out and each joint cleaned back to sound, dry faces.
- Backing and primer go in where needed, then the chosen sealant is applied and tooled.
- We walk the completed areas with you and sign them off under the 12-month guarantee.
What affects the price in SE20
What a job costs comes down to how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a fixed quote when you are ready.
What you get with us
- Fully insured
- Coloured sealants to suit the setting, where available
- Fixed quotes based on photos, drawings or a visit
- Matching to RAL references, product permitting
Getting a fixed quote
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Send what you have, and we’ll arrange a site visit if anything is unclear.
Around Penge
In Penge, that means premises near Harris City Academy Crystal Palace, Crooked Billet pub and Crystal Palace School, among other places. Also close by are Crystal Palace Dinosaurs (less than half a mile north-west), Church of St John the Evangelist (less than half a mile east) and Harris Primary Academy Crystal Palace (under half a mile north-east). There’s a railway station in Penge itself: Penge West station. Well-known places in the area include St Christopher's Hospice (0.5 miles north) and Crystal Palace Museum (0.8 miles north-west). Green spaces nearby include Dulwich Upper Wood and Knight's Hill.
Shops, offices and hotels in SE20
Shop fits, office refurbishments and hotel refits in towns such as Beckenham, Selhurst and South Norwood all leave joints that need sealing. Where the joint is on show, a colour that suits the finish is part of the job.
We work across Greater London and the South East counties, so jobs in SE20 are planned with access, loading and parking in mind.
Penge: Premises within reach of Penge West station (to the north of Penge) often have busy frontages where joints are seen by everyone passing. Occupiers with premises at both Franklin Industrial Estate and Clyde Vale Industrial Estate could have the sealant at each handled under one quote.
Aftercare for building managers
Cleaning and maintenance staff play a part too. Pass these on to them:
- Look at the sealant around anything that has been moved or replaced
- Put external and wet-area joints on a regular inspection round
- Log reseals in the O&M or maintenance records
- Have extract fans checked so wet areas dry out
Good ventilation keeps wet-area sealant in better condition. Extraction that isn’t working keeps the joints wet, which is how mould gets back in. It’s worth having fans checked while the sealant is fresh.
An open joint in a food area or toilet collects dirt and moisture that cleaning can’t reach. Environmental health officers look at how cleanable surfaces are, so sound, smooth joints matter.
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 easy to get wrong without experience.
Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and we’ll confirm the paperwork you need with the quote.
What sets the cost
Sealant work doesn’t have a standard rate, since sites vary so much. What we look at:
- How much there is to seal
- The product specified
- Distance, for remote addresses
- Whether the work must be split into stages
Pricing sealant joints depends on quantities, condition and access, and any specification that applies. Call for a quote.
Details that help us quote
However big the job, the same details help:
- Any dates the work must fit around
- Access details, including height
- Photos of the joints, close up and from further back
- The product your specification calls for
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price against exactly what is specified. Smaller jobs need nothing more than photographs and a few notes.
Why deal with it now?
Some managers wait for a fit-out before touching the mastic. For internal joints that are only cosmetic, that can make sense, but external and wet-area joints that already leak shouldn’t wait. Splitting the scope into now and later is often the sensible compromise.
Questions to ask before you book
- How the joint faces will be prepared and primed
- Are they CHAS accredited or on Constructionline?
- What the guarantee covers, and for how long
- Their approach to joint depth and backing
Owners, agents and contractors
Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, and each stage is agreed with your contact.
For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first, with CSCS-carded applicators on site.
Questions we are asked in SE20
Who decides which product is used?
The specification comes first, if there is one. Without one, the joint decides: its movement, its surfaces and what it has to cope with.
Can you work to our specification?
Yes. Include it with the drawings when you ask for a quote, and we’ll price the work to it, flagging anything that needs clarifying.
Do you cover SE20?
Yes. SE20 is in our area and the rest of Greater London. For a quote, speak to us on 01277 525 020 or email a schedule or drawings.
How long do sealant joints last?
Nobody can honestly give a figure in years, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.
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.
What guarantee do you give on resealing?
The work is guaranteed for 12 months. Should anything we did fail within that period, let us know.
Do your applicators hold CSCS cards?
Yes. If you need card details for site access, tell us and we’ll confirm them with the quote.