The office for window & door installers
StartGrowing answers your calls, writes up your quotes, chases every lead and keeps every customer informed — in your firm's name, around the clock, for less than a part-timer. You fit windows. We run the office.
Get my free video quoteSend one quote. We turn it into a video your customer will actually watch. Free, no strings.
What the office doesYour phone, after a day on site
New enquiry: Mrs Patel, 14 Elm Road. Survey booked Thu 10am.
Draft quote ready — 6 windows + door, £7,400. Tap to check.
Mrs Patel watched her video quote. Replayed the finance bit.
Deposit received: £1,850 from Mr Davies.
New 5★ review: 'Fitted Tuesday, spotless.'
Every call answered, day or night, as your firm
Draft quotes back the same afternoon
Follow-ups on every quote, every time
Measured against your own numbers, monthly fees back if they don't move
You're up a ladder when the phone rings. It goes to voicemail and they ring the next firm. Saturday's survey gets quoted on Sunday night. Three quotes need chasing and you don't know which ones are warm. A customer rings to ask where her windows are. The deposit comes by bank transfer, eventually. Nobody asks last month's fits for a review.
Meanwhile the firm down the road gets £800 more for the same windows, because they've got someone in the office making it all look effortless.
You could hire that someone. £1,500 a month, a desk, holidays, training, and they leave in eighteen months. Or you could have the office without the payroll.
Everything a good office does for a window firm, run for you, in your name. Pick the ones you need.
Your phone picked up 24/7 by an assistant that introduces itself as your firm, takes the job details and books the survey into your diary. The transcript's on your phone in two minutes.
"Hi, you've reached Smith Windows. I can book you a survey now, or have Dave call you back."
Website and WhatsApp chat that answers the usual questions, captures the job and books the survey. Nobody waits for a reply, nobody gets a form.
Survey slots offered inside the chat, straight from your calendar.
Confirmation, a reminder, a photo of you and "we're on our way" the morning of. Plus five quick questions and a photo of the windows beforehand, so you arrive already knowing the job.
No-shows down. Surveys shorter.
Send a voice note from the van. A draft quote lands in your inbox that afternoon, on your template, at your prices. You check it and hit send. Quotes go out the same day, every time.
"Six casements in anthracite, composite door, scaffold at the back."
Your quote becomes a 90-second video of the customer's own house, with you explaining the windows, the price on a monthly-payment slider, your answer to "I've had a cheaper quote," and reviews from their street. Plus a proposal page and a PDF for the ones who want paper.
Powered by VidYes. The quote they actually watch.
Every quote chased on days 4, 9 and 21, in your name, with a message that sounds like you. You're told when they watch and which part they replayed, so you ring the warm ones and stop chasing the cold ones.
"Mrs Patel replayed the finance section twice."
Signature and deposit inside the proposal. Then "frames ordered", "in production", "fitting Tuesday, team arriving 8am", an end-of-day photo and a handover pack with guarantee and FENSA certificate. The "where are my windows" calls stop.
One tap from you at each stage. We send the message.
A review ask the day after every fit. A "know a neighbour?" a week later. A monthly email to your past customers with what you've been fitting. One street turns into the next.
Your best customers become your sales team.
18:10 Mon
Your phone
New enquiry — Mrs Patel, 14 Elm Road, six windows and a door. Survey booked Tue 10am. Photos attached.
09:40 Tue
Her phone
Morning Mrs Patel — Dave's on his way, here's his photo. See you at ten.
13:15 Tue
Your phone
Draft quote ready: £7,400. Tap to check and send.
13:50 Tue
Her phone
1:30Your home, your new windows
20:30 Tue
Your phone
Mrs Patel watched to the end. Opened the finance slider. Booked a call-back for Thursday.
You did the survey and the measure. That's the whole of your Tuesday.
Smith Windows and Mrs Patel are illustrative.
No call missed. Every quote out the same day. Every quote followed up. Every warm lead rung first. Most firms are losing 15–25% of their winnable jobs in those four gaps alone.
No quoting on Sunday. No chasing at nine. No "where are my windows" calls. You get the alerts; the office does the work.
Video quotes, proper proposals, order updates, handover packs. Customers pay for confidence, and confidence is what a good office produces. This is how the firm down the road justifies the extra £800.
Start with the piece that's costing you most. Most firms begin with Follow Through and add the front desk once they've seen the alerts land for a month.
£349 / month
+ £500 setup
Every quote followed up. Every warm lead found.
£649 / month
+ £950 setup
Enquiries answered, surveys booked, quotes drafted.
£999 / month
+ £1,500 setup
The office, complete. Enquiry to referral.
First 60 days with no monthly fee, then monthly rolling. Extra videos £8. Extra call time £0.40/min.
Scroll across to compare all five options.
| Service | Part-time admin | Answering service | Lead company | Agency | StartGrowing |
|---|---|---|---|---|---|
| Answers 24/7 and books the survey | office hours | takes a message | No | No | Yes |
| Quotes written up same day | if they can | No | No | No | Yes |
| Video quote of their house | No | No | No | No | Yes |
| Chases every quote | if reminded | No | No | No | Yes |
| Deposits, order updates, reviews, referrals | some | No | No | No | Yes |
| Sells you leads you have to convert | No | No | Yes | Yes | No |
| Needs managing, takes holidays | Yes | No | No | meetings | No |
| Monthly | £1,200–1,800 | £100–300 | £500–2,000 | £800–3,000 | £349–999 |
Before we start we take your last six months: enquiries in, quotes out, deposits taken. Every month you get the same three numbers back on one page. If at day 90 the share of enquiries turning into deposits hasn't beaten your baseline, your monthly fees are refunded. Recordings and set-up are yours to keep either way.
Setup fees aren't refundable. Works when quotes are forwarded and bookings answered as agreed.I'm David. I build the systems that let small firms run like big ones. I've spent enough time around installers to know the job isn't the problem — the office is. StartGrowing doesn't sell leads, ads or websites. We run the bit between the enquiry and the review. You'll have my WhatsApp from day one.
David · StartGrowingBuilt for owner-run UK firms with at least 30 enquiries and 15 quotes a month.
The video is you. The messages are in your name and sound like you. The phone assistant says it's your firm's assistant and never pretends to be a person. StartGrowing is never mentioned to your customers.
Complete. You set the rules: minimum job, areas, what the assistant can and can't say. You see and approve every message template at setup and change any of it, any time, with a WhatsApp to us. Nothing customer-facing exists that you haven't seen.
A 30-minute setup call and a 30–45 minute recording session we direct. After that you forward quotes, send voice notes and tap job stages. Most owners spend less time on admin in a month than they used to spend in a weekend.
Front Desk and Sales Office run without it. The video is the strongest part, and it works best with you in it, but it's your call.
Yes. Forward the PDF, Word file or a photo of a handwritten quote. Nothing changes on your side.
Give fixed prices, promise fitting dates, or handle a complaint beyond taking the details and getting you on the phone. You ring it yourself before it ever answers a customer.
No. No ads, no SEO, no website builds, no lead lists. We turn the enquiries you already get into deposits.
Monthly rolling after the first 60 days. Everything we built for you is yours.
Send us one quote you've already issued. We'll turn it into a video of the customer's house with your firm on it, free, and show you what the rest of the office would have done with that job.
Get my free video quoteAnswered by David, on WhatsApp, same day.
