Before you sign a contract for a glass door installation in Jamaica, five things should be locked down in writing. Each one of these is something that has caught homeowners out before, either because it was missing from the contract or because what was written turned out to be different from what was promised verbally during the quote conversation.
This is the practical pre-signature checklist. None of it is legal advice (talk to your attorney for that if the contract is large enough to warrant it), but all of it is what a careful homeowner should verify before adding their signature.
1. The product spec is fully named
Glass doors are categories, not products. “Sliding aluminum patio door” is a category that includes everything from a $300 builder-grade slider to a $5,000 hurricane-rated thermal-break system. A contract that names only the category leaves the supplier room to deliver the cheapest thing in the category, which is rarely what the homeowner was visualizing.
What should be in the spec line:
- Door type and panel count (e.g. “two-panel sliding patio door”)
- Overall opening dimensions (width x height)
- Frame material and finish (e.g. “thermal-break aluminum, white powder-coat”)
- Glass spec (e.g. “5mm tempered Low-E single pane” or “double-glazed insulated unit with Low-E coating”)
- Hardware spec (e.g. “multi-point lock, satin nickel handle”)
- Any specialty features (mosquito mesh, hurricane rating, smart lock)
If the contract just says “sliding glass door installed per quote” with no spec detail, ask for the spec to be written into the contract. The verbal conversation during the quote is not enforceable; the contract is.
2. The scope of work is complete, including prep
The install crew arriving on site is the small part of the project. The full scope often includes opening prep, debris removal, sealing, finish work around the frame, and cleanup. If any of these is implied but not written, it can later become an “extra” charge.
What the scope should explicitly include or exclude:
- Removal and disposal of the existing door (if applicable)
- Opening preparation (widening, squaring, lintel work)
- Frame sealing (interior and exterior silicone/sealant)
- Interior trim work around the new frame
- Touch-up plaster or paint where install work disturbed finishes
- Cleanup and debris removal
A common pattern in lower-quality contracts: install of the door is included, removal of the old door is “extra,” opening prep is “extra,” plaster repair is “extra,” and the final invoice ends up substantially higher than the quoted price. Eliminate this by getting each line into the scope or explicitly noted as excluded.
3. The warranty terms are specific and in writing
“Warranty” without specifics is decoration. Real warranty terms specify what’s covered, what’s not, how long, and what the claims process is. Read the warranty section carefully and confirm:
What’s covered. Typically: workmanship (the install itself), the door product (the frame, glass, hardware as supplied), and sometimes specific failure modes (water ingress, hardware malfunction).
What’s not covered. Typically: damage from misuse, weather events outside normal range, glass breakage from external impact, normal wear on consumables (seals, weatherstripping).
Duration. Workmanship warranty terms vary; one year is the standard local minimum. Product warranties on the door itself depend on the manufacturer (often 5 to 10 years on glass, longer on the frame).
How to claim. Who do you call, what’s the expected response time, what does the resolution process look like?
For our installs, the standard is a one-year workmanship warranty plus pass-through of manufacturer warranties on the product. The terms are explicit in the contract.
4. The payment schedule matches the project milestones
Payment terms protect both sides. A contract that asks for 100 percent upfront leaves the homeowner exposed if the install never happens or goes badly. A contract that defers all payment to completion leaves the supplier exposed if a deposit was needed to procure materials.
Typical structure for a Jamaican glass door install:
- Deposit at signing (often 30 to 50 percent) to procure materials and fabricate
- Progress payment at delivery to site or start of install (often 30 to 40 percent)
- Final payment at completion and acceptance (the remainder)
What to verify:
- The percentages add to 100 percent
- The trigger for each payment is clearly defined (e.g. “upon delivery of fabricated door to site,” not “upon supplier request”)
- The final payment trigger includes your acceptance, not just supplier-declared completion
- Late payment terms are reasonable
Avoid contracts that demand full payment upfront. Even for established suppliers, a deposit-plus-final structure is the norm and protects you.
5. The timeline includes both lead time and install duration
Two different timeline elements need to be in the contract:
Lead time before install. How many weeks between contract signature and the install day. For custom-size doors, 3 to 5 weeks is normal. For standard-size doors, 1 to 2 weeks. If the contract doesn’t specify, the install date can drift indefinitely.
Install duration. How many days the crew will be on site. For a single door, usually a half day to a day. For a larger system, multiple days. The contract should specify this so you can plan around it.
Liquidated damages or remedies for delay. What happens if the supplier misses the date? On larger projects this matters more; on small residential installs, a reasonable late-delivery clause provides accountability.
For Jamaican projects specifically, account for weather buffer. The contract should acknowledge that rain or hurricane warnings can shift the install date by a day or two without that being a contract breach.
Bonus: things to ask about even if they’re not in the contract
A few additional questions that help clarify the relationship before you sign:
Who is the project contact? Specifically, who answers your call if there’s an issue during install or after.
What’s the change-order process? If you decide partway through that you want a different finish or an additional door, how is that handled.
Are there any pass-through costs not in the quote? Some suppliers charge separately for transport to remote locations, scaffold, or other site-specific items. Better to ask now than to find out at invoicing.
What’s the cure window after install? For shower doors specifically, the 24-hour silicone cure should be acknowledged so you can plan around it.
What to do if something is missing
If you read the contract and find one of the above five items is missing or unclear, ask for it to be added or clarified in writing before signing. A reasonable supplier will agree without resistance; if you’re getting pushback on writing down what was already promised verbally, that’s information.
If something verbal during the quote conversation isn’t in the contract, the contract takes precedence after signing. So whatever you want enforceable needs to be on the page.
Related reading
- What does a glass door installation cost in Jamaica?
- How long does a glass door install actually take?
- Five things to check before signing a sliding window contract
For more general context on construction contracts and what they typically cover, Wikipedia has a reasonable overview.
Frequently asked questions
What should be written in a glass door installation contract?
The product spec in full detail (door type, dimensions, frame material, glass spec, hardware), the scope of work including prep and cleanup, warranty terms (what’s covered, duration, claims process), the payment schedule with clear triggers, and the timeline including both fabrication lead time and install duration. Anything promised verbally during the quote should be on the contract page; otherwise it’s not enforceable after signing.
How much deposit is normal for a glass door installation in Jamaica?
30 to 50 percent at contract signing is typical, covering material procurement and fabrication start. Another 30 to 40 percent often comes due at delivery to site or install start. The remainder (20 to 40 percent) is final payment on completion and acceptance. Avoid contracts that demand 100 percent upfront or that have unclear payment triggers.
What warranty is standard on glass door installation?
For workmanship (the install itself), one year is the local Jamaican standard minimum. For the door product (frame, glass, hardware), the manufacturer warranties usually pass through and vary by product: typically 5 to 10 years on insulating glass units, longer on the frame itself. A contract that doesn’t specify the warranty terms or just says lifetime without explanation should prompt follow-up questions.
What if the verbal quote conversation included something not in the contract?
Get it added to the contract before signing. After signature, the contract is what’s enforceable; the verbal conversation is not. A reasonable supplier will add agreed-upon items in writing without resistance. If you’re getting pushback, that itself is information about how the supplier handles accountability.
Can the install date in the contract slip without consequence?
Some slip is reasonable, especially in Jamaica where weather can shift install dates. A well-written contract acknowledges weather buffers without penalty but holds the supplier accountable for unjustified delays. For larger projects, a clear remedy for missed dates (revised schedule, partial refund of deposit, etc.) provides accountability. For small residential installs, a few days slip is usually accepted as normal.
The next step
Our quotes are written to be the contract. The spec is fully named, the scope is explicit, the warranty terms are stated in the document, and the payment and timeline are clear. Send your project brief through the quote request form and we’ll come back with a quote you can read end-to-end before deciding.
The glass doors service page covers what we install. The contact page is for questions before the formal quote.
Reading the contract carefully before signing isn’t being difficult; it’s protecting both sides. A supplier worth working with welcomes the careful read.