Netteswell mastic sealing
Mastic sealing for building owners, managing agents and housing associations throughout Netteswell and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.
- No planned programme for sealant
- A mix of products and colours from past repairs
- Cracked, hardened mastic round windows on a block
Mastic sealing in Netteswell
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Mastic sealing for commercial buildings in Netteswell
In buildings from before 2000, some old mastics contain asbestos. We check the asbestos register or survey before any old sealant is cut out and if it’s suspected, work stops until it’s tested. We don’t remove asbestos-containing materials. If you have repeated reactive repairs to the same buildings and the same joint failures repeated across a portfolio, we can put it right. One point of contact handles commercial sealant work in Netteswell from the first photos to the final walk-round, for single jobs and planned programmes alike.
Places the size of Netteswell normally have some housing association stock, small blocks and mixed-use buildings. Their window perimeters and external joints need renewing as the mastic ages.
The 12-month guarantee covers our workmanship: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Where
- Netteswell (CM20, CM18, CM19)
- Region
- Essex
- Cover
- 12 months on our workmanship
- Price
- Quoted before any work starts
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Work for main contractors and building owners
Building owners and managing agents use us on sealant work across single buildings or whole portfolios around Netteswell. One quote can cover more than one site, so there’s one set of paperwork to deal with.
For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first, and our applicators hold CSCS cards.
Diagnose, treat, sign off
In a busy building, 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 we move to the next. Several jobs near Netteswell can be grouped on one trip. Tell us your site hours and we’ll plan around them.
- We inspect each building and record the joints that have failed.
- You get a fixed quote, per block or for the whole programme.
- We agree the programme and dates with you.
- Old mastic is removed and the joint faces prepared.
- New sealant goes in with backing rod and primer where needed.
- We check the finished work and confirm the guarantee.
Getting the site ready
- Confirm the product named in the specification
- Arrange parking or a loading space
- Tell us your opening times and when work is allowed
Request a quote
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price the work to it. Smaller jobs need nothing more than photos and a few notes.
Related advice
When it isn’t the sealant
Our job is the joint, not everything around it. On its own, sealant can’t deal with:
- Asbestos-containing sealant, which we don’t remove
- Water coming in from the roof or rainwater goods
- Cracked or crumbling render, brick or stone at the joint edges (we’ll tell you if so)
If in doubt, give us a call on 01277 525 020 or email the details over and we will say what we think before you book.
Where we work in Netteswell
- Communal kitchens and washrooms
- External wall and movement joints
- Window and door perimeters on blocks
- Communal entrances and stairwells
- Balcony and threshold joints
- Shopfronts below residential blocks
Also near Netteswell
What else we do in Netteswell
Common questions from Netteswell clients
We manage a building near Harlow Town station. Can you help?
Yes. Managing agents, landlords, property factors and housing associations are who this service is for. Photos of each elevation help us quote accurately.
Is Netteswell too small for you to travel to?
Not at all: smaller places are covered as well as towns. We cover Greater London and the counties of the South East. Good photographs up front let us bring everything on the first visit.
How many days will you need on site?
We plan the time on site around your programme and access. We’ll give you an estimate of time on site when we quote.
How do you handle work on occupied blocks?
We plan around people living or working in the building. Dates and areas are agreed with you so residents or tenants can be told, and entrances stay in use.
Is asbestos a concern with old mastic?
Some mastics in pre-2000 buildings contain asbestos. We ask for the asbestos register or survey before work starts and suspect material is tested first.
How long before the joints can be used?
That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.
How do you choose the sealant?
If the job is specified, we follow the specification. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.
Do you need mastic sealing in Netteswell?
Communal entrances and corridors see a lot of wear, with joints near the floor and around doors suffering most. Cleaning products add to the wear.
Things that typically lead to an enquiry:
- Repeated reactive repairs to the same buildings
- A mix of products and colours from past repairs
- Estate-wide sealant that is simply worn out
- Failed external movement joints
If you are responsible for a building such as St Andrew's Methodist Church, frame and door mastic needs the same attention as any other property.
What to look for in a quote
- Whether primer will be used where the manufacturer specifies it
- The terms of the workmanship guarantee
- Can the work be phased to keep areas open?
- Is the sealant right for the movement and the substrate?
Cost factors for mastic joints
To price the job, we consider:
- Location, for remote and island sites
- Access and working height
- Working within restricted access windows
- Induction, permit and paperwork requirements
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 we need to price the job
It doesn’t need to be a full survey. A few details are enough to get going:
- The product your specification calls for
- Where the site is, with the postcode
- Rough lengths or quantities, or drawings if you have them
- Whether the building will be occupied during the work
For a fixed quote, call the office on 01277 525 020 or email a schedule or drawings with the site address and an outline of the work. You can also send details through our quote form.
Planned mastic for Netteswell portfolios
At about 21 miles from central London, Netteswell is within reach of the capital. Commuter-belt towns tend to have plenty of managed blocks near stations and town centres; their frame mastic often ages block-wide. Netteswell sits in or beside Harlow, a twentieth-century planned town. Estates from the same phase normally have mastic of the same age, so owners and associations can deal with it block by block.
Landlords with units on estates such as Oaks Retail Park (to the north of Netteswell) can bring frame, door and external mastic across several units into one programme. If you look after a block within reach of Harlow Town station (0.8 miles north-west of Netteswell), frame and balcony mastic can be renewed on one programme.
Netteswell is about 1 mile west of Harlow, in Essex. Anywhere in CM20, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. 644 places across Essex fall within our area, Netteswell among them. Sites around London have their own page, about 21 miles away.
Commercial sites across CM20, CM18 and CM19 are covered for mastic joints. If your site is on Park Lane, School Lane and Maddox Road or close by, we can quote for mastic joints. With the A1019 nearby, Netteswell is easy to get to with materials and equipment. Just outside Netteswell, we also work in Harlow (1 mile east), Mark Hall South (1 mile east), Mark Hall North (1 mile north-east), Latton (1 mile south-east) and Bush Fair (1 mile south). Nearby towns on our patch include Brentwood (13 miles south-east), Loughton (9 miles south), Waltham Abbey (7 miles south-west), Great Dunmow (13 miles north-east), Epping (5 miles south) and Stansted Mountfitchet (10 miles north-east).
Around Netteswell
In Netteswell, that means premises near Brays Grove, BMAT STEM Academy and Garden Tiger pub and the streets around them. Netteswell’s nearest station is Harlow Town station, about 0.8 miles north-west. Nearby you will also find Harlow Mill (1.6 miles north-east) and Princess Alexandra Hospital (0.8 miles west). Not far away are Hunsdon Mead.
Doing it in-house
There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.
For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.