Greater London · England
Commercial sealant contractors in EN5
Our applicators cover all of the EN5 postcode district, including Barnet, New Barnet and High Barnet. Every joint is properly prepared, with a 12-month guarantee.
Need sealant work in EN5?
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Where we work in EN5
- Barnet
- New Barnet
- High Barnet
- Hadley
- Underhill
- Monken Hadley
- Arkley
- Dancers Hill
- Kitts End
- Bentley Heath
- Rowley Green
- Hadley Wood
- Totteridge
Sealant work we offer in EN5
- Commercial sealant contractors
- Fire-rated sealing and fire stopping
- Industrial and floor joint sealing
- Coloured and colour-matched sealant
- Facade and window perimeter sealing
- Expansion and movement joint sealing
- Commercial washroom and wet-area sealing
- Construction and new-build mastic
- Mastic sealing for building owners and managing agents
- Every service
Let us know the job and your postcode for a fixed quote: phone 01277 525 020 or use the quote form.
Postcodes nearby
More in Greater London
Towns and villages in Greater London
Areas we cover
How commercial sealant contractors works in EN5
Having a single contact for all your sites makes sealant far simpler to manage. We take on one-off reseals, runs of jobs across a portfolio and planned maintenance programmes, run the same way on every site: send details, get a fixed quote, we seal, and a 12-month guarantee once it’s signed off. For sites in EN5, the quickest start is to call 01277 525 020 or email a schedule or drawings with a list of addresses. We work on movement joints in walls and floors, window and door perimeters and external facade joints, and the usual reasons a site gets in touch are sanitary sealant that has gone black and patchy and damp patches where an external joint has failed.
The first thing on site is a walk round with your contact, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in.
- We start with the evidence: photos, drawings or a look on site.
- You get a fixed quote covering removal, preparation and the new sealant.
- We agree the order of work, access windows and site hours with you.
- The failed sealant comes out and the faces are prepared, with primer where required.
- Depth is set with backing, then the sealant is applied, tooled and the area tidied.
- We hand back each area with its cure time and our 12-month guarantee.
How we quote
What a job costs comes down to how many linear metres there are, how much old material needs removing and the access. Call for a quote when you’re ready.
What you get with us
- Sealing commercial buildings since 2005
- Clear, fixed quotes
- One number for every site we cover
- CHAS accredited
Ask for a quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. For smaller jobs, photos and a description will do.
Landmarks near Barnet
In Barnet, that means premises near The Railway Tavern, Highlands Gardens and Grasvenor Avenue Infant School and the streets around them. Other local landmarks include Susi Earnshaw Theatre School (0.7 miles north-west), Queen Elizabeth's Girls' School (0.6 miles north-west) and St John's United Reformed Church (under half a mile east). The nearest railway station is New Barnet station, roughly 0.6 miles east. Other landmarks nearby include Barnet General Hospital (1.2 miles west) and Francis Skaryna Belarusian Library and Museum (2.1 miles south). Open spaces near Barnet include Darland's Lake and Greenhill Gardens.
Where commercial joints are in EN5
From Barnet, New Barnet and High Barnet outwards, EN5 has a broad spread of commercial premises: shops, offices, hotels, restaurants and units. Because we cover all of it, multi-site occupiers can bring every building under one quote, with colours matched site to site where the brand needs it.
Around the motorway corridors of the South East, business parks and industrial estates are common, and EN5 is part of the area we cover.
Barnet: For a hotel such as The Barrington Hotel, less than half a mile south-east of Barnet, the colour of a joint at the bar or the bath matters to the look of the room. Units at places like Spires Shopping Centre (0.9 miles north-west of Barnet) are refitted as brands change, and the joints have to suit each new scheme.
Doing it in-house
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
After the work
Cleaning and maintenance staff play a part too. Share these points with them:
- Deal with small splits before they become leaks
- Brief cleaning contractors to avoid scourers and blades on sealant
- Keep a record of which joints were resealed and when
- Keep barriers up until the new sealant has cured
We stand behind the workmanship with a 12-month guarantee. Keep the handover details with your O&M or maintenance records so it’s easy to find if a joint we sealed gives trouble inside the 12 months.
A failed external joint lets water in every time it rains. It can run into cavities, insulation and internal finishes long before anyone sees a stain. Resealing early keeps the problem in the sealant and out of the building.
Why act early?
A cheaper quote sometimes means the old bead stays in. New sealant laid on old silicone has nothing to bond to, so it peels. Every quote we give includes full removal and preparation, because that’s what makes the new bead last.
Questions to ask before you book
- What site paperwork they can supply
- What level of public liability insurance do they hold?
- Whether old or failed sealant will be cut out, not overlaid
- Will CSCS-carded applicators be on site?
Quoting for work in EN5
What shapes the price:
- How much there is to seal
- Any access equipment needed
- Working within restricted access windows
- The site’s rules and procedures
Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits.
Before you send an enquiry
Whether it’s one area or a whole building, these details speed things up:
- Asbestos survey details if the building is older
- Drawings or a marked-up plan, if available
- Access details, including height
- A wide shot and a close-up of the area
For a fixed quote, call 01277 525 020 or email the details over. You can also send details through our quote form.
Signs you need commercial sealant contractors
The wrong sealant in the wrong place is a common cause of early failure. Decorators’ caulk on a joint that moves, acetoxy silicone on stone or metal, or a stiff sealant on a facade all let go sooner than they should. Guidance such as BS 6213 exists to steer sealant selection for exactly this reason.
If one of these sounds familiar, it’s time for a closer look:
- Movement joints packed with grit and debris
- Sanitary sealant that has gone black and patchy
- Frame mastic that has hardened and come away from the wall
- Weathered facade sealant that no longer flexes
Questions we’re asked in EN5
Will your applicators have CSCS cards?
Yes. Should the site need card details in advance, tell us and we’ll confirm them with the quote.
When can the area be used after sealing?
We’ll confirm how long the chosen product needs to cure.
Can one contractor look after sealant on all our buildings?
Yes, we can. Send a list of addresses and what’s needed at each, and fixed prices follow, with a suggested sequence.
What do you need from us to quote?
Photos, drawings or a schedule of the joints are typically enough to start. If a visit is needed we’ll book one, and a fixed quote follows.
How long will the new sealant last?
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 hold CHAS accreditation?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member.
Is EN5 in your area?
Yes. We take on work across EN5, with one number for every area we cover.