Essex · England
Hawkwell Window Mastic
Mastic around window and door frames, sills and patio doors for homeowners, landlords and businesses in Hawkwell. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Draughts coming in around windows and doors
- Damp patches on the reveal after heavy rain
- Mastic that’s falling out in pieces
How we handle window mastic in Hawkwell
Most frames have an outside joint and an inside one. The external joint is the weather seal; the internal joint closes the gap to the plaster and stops draughts. Either or both can be done. If you are dealing with hard, cracked sealant around windows and gaps between the frame and the inside reveal, we can help, whatever the surface.
In smaller places like Hawkwell, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. The right sealant depends on the frame and on what it sits in.
Each job carries a 12-month guarantee, large or small.
- Location
- Hawkwell (SS5)
- Region
- Essex
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Landlords, agents and businesses in Hawkwell
We also work for property managers and facilities teams in Hawkwell and across Essex. We can quote a run of properties together.
If you manage several properties in or around Hawkwell, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and pictures by email help.
FAQs for Hawkwell
Do you work for landlords with property near Hockley station?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Do you cover smaller places like Hawkwell?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Where is Mr Mastic based?
We work from Crawley. We cover Hawkwell and the rest of Essex.
Can you do upstairs windows?
Yes, as long as they can be reached safely. Let us know about access when you ask for a quote and we will plan for it.
Can you get sealant to suit coloured frames?
Yes, in most cases. Tell us the frame colour when you get in touch and we will match it as closely as we can.
Can you seal the gap between the frame and the plaster indoors?
Yes. Plenty of draughts come through the inside joint as well as the outside, so sealing both is often worthwhile.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us, and we are fully insured.
What we can’t put right
A few problems are outside what sealant work can do:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Faulty window hardware
- Rotten timber, which needs a joiner first
If you’re not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer.
Surfaces we seal
- Aluminium frames
- uPVC windows
- Window sills
- Patio & French doors
- Composite doors
- Timber windows & doors
Also near Hawkwell
What else we do in Hawkwell
How the visit works
There’s no need to move everything out, just the space around the work. Everything nearby is protected, and the job takes most of a day for a typical house, less for a few frames in most cases. For a job in Hawkwell, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We check each frame and agree which ones need doing.
- Next the failed sealant is cut away and the joint cleaned.
- Where gaps are deep, backing rod goes in first.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Every joint is checked before we leave.
Before we arrive
- Let us know about parking restrictions
- Let us know if you’ve seen damp or leaks
- Clear items away from the joints we are working on
Getting a quote
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or drop us an email.
Read more
What the job involves on each surface
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the bottom joint sees the most water. We prepare and reseal every joint, backing the deep ones.
Window sills
Masonry sills can have joints where water gets in, and the joint under the frame can let rain run behind. We seal those with a sealant suited to masonry.
What window mastic looks like in Hawkwell
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Southchurch Hall (about 4.9 miles south-east) nearby, there’s older building stock in the area around Hawkwell as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
In the older streets around Emmanuel Parish Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Schools such as Westerings Primary Academy are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Hawkwell is about 1 mile north-west of Rochford, in Essex. Across the SS5 area, our applicators can take on window mastic. Our Essex coverage runs to 644 places, and Hawkwell is one of them. Our Chelmsford page covers work nearby, about 13 miles away.
We work across SS5 for window mastic and the streets around it. That includes homes and businesses on Briar Close, Hazelwood and Hawkwell Park Drive. Neighbouring places we cover for window mastic include Stroud Green (1 mile south-east), Rochford (1 mile south-east), Eastwood (2 miles south), Rayleigh (3 miles west) and Daws Heath (3 miles south-west). Further out, we also cover Chelmsford (13 miles north-west), Basildon (9 miles west), Maldon (9 miles north), Canvey Island (6 miles south-west), Billericay (11 miles west) and Witham (14 miles north).
Local landmarks in Hawkwell
Locally, jobs take us to homes and businesses close to Magnolia Fields and Greensward Academy, among other places. The nearest railway station is Hockley station, roughly 0.6 miles north-west. Well-known places in the area include Rayleigh Castle (2.8 miles west) and Southend University Hospital (3 miles south). Open spaces near Hawkwell include Pound Wood.
Keeping the joints in good condition
Aftercare is simple:
- Make sure the drainage slots aren’t blocked
- Avoid blasting the frames with a pressure washer
- Look round the frames every year or so
- Ventilate rooms so frames do not stay wet inside
On timber frames, keep the paintwork in good order, because bare, wet timber moves more and pulls at the joint. Paint up to the joint, not over the silicone.
A small gap around a frame only grows. As old mastic keeps shrinking, the gap widens, and heat escapes around the frame. A new joint closes it up.
Signs you need window mastic in Hawkwell
Joint shape matters as much as the product. A thin smear across a wide gap has nothing to it, and a gap filled solid cannot flex. Backing rod sets the right depth.
Any of these means the joints need attention:
- Cracked internal joints between frame and plaster
- Damp patches on the reveal after heavy rain
- Cold air getting in at the frame edge
- Sealant in the wrong colour for the frame
For landlords with property near Hockley station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
What to look for in a quote
- Whether the sealant suits the joint
- How much experience the applicator has
- Are they insured?
- How long to leave it before use
How we quote for window mastic
Your quote is based on your job. We take into account:
- How many rooms, windows or areas are involved
- When we can work, for business premises
- Whether there’s mould to deal with
- Whether the work is at height
What you pay reflects the work, not a rough estimate. That is why we ask about the job first and agree the price before starting.
Helping us quote
To make quoting easier, please include:
- Any previous sealing or DIY work
- The rough size of the job
- Where the job is, and your postcode
- What’s wrong with the joints now
We quote each job on its own. Just ring 0345 464 0079 or drop us an email with the details.