Single & Double Hung Windows in Lighthouse Point, FL

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Single & Double Hung Windows in Lighthouse Point, FL

Single and double hung windows are the most common window type in Lighthouse Point homes, and replacing them is one of the most straightforward upgrades a homeowner can make – when the measurements are done correctly and the product is matched to the opening. At Sightline Windows & Doors, every Window Installation starts with a measured survey the customer keeps, and the written price on that document is the same number that appears on the final invoice. No adjustments at the end of the job. No surprises on the invoice.

If you’re working through a full window project or just replacing a few units, our Window Installation in Lighthouse Point page covers the broader scope of what we do and how we price it. This page focuses specifically on single and double hung configurations – how they work, what they cost in this market, and how Sightline handles them from the first measurement to the final photo.

To get a written estimate before any work starts, call us at (754) 600-8907. A live person answers, every time.

Single vs. Double Hung: What the Difference Actually Means

The distinction matters for ventilation, cleaning access, and long-term hardware maintenance – so it’s worth being precise before selecting a product.

A single hung window has one operable sash – the bottom panel slides up while the top panel stays fixed. The fixed upper sash is permanently glazed into the frame. Single hung units cost less because there’s less hardware, fewer moving parts, and simpler fabrication. In Lighthouse Point, single hung windows are common in older ranch-style homes built in the 1960s through 1980s, where the original window openings were sized for that configuration. For a more contemporary option, consider our 3-Panel Sliding (3-Lite Roller) Windows.

A double hung window has two operable sashes. The bottom slides up, and the top slides down. Both sashes typically tilt inward, which lets you clean the exterior glass from inside – a meaningful feature in a coastal climate where salt haze and humidity leave visible deposits on the glass within weeks. Double hung units run slightly higher in cost but offer better ventilation control and are far easier to maintain. In neighborhoods close to the Intracoastal, like those along NE 24th Street or the Bay Drive corridor, salt accumulation on glass is a genuine maintenance consideration, not a marginal one.

Both configurations can be specified in impact-rated glazing – a requirement in Broward County for any new or replacement Window Installation Near Me in Lighthouse Point, FL in the coastal building zone. We’ll cover that under pricing.

When You Need Single & Double Hung Windows

• Drafts along the frame or sash rail: If you feel air movement around the sash when the window is closed, the weatherstripping has failed or the frame has shifted. In Lighthouse Point’s humid summers, a failed seal also pulls conditioned air out and drives up cooling costs noticeably.
• Sashes that won’t stay up or slide unevenly: Broken balance springs are the most common mechanical failure on single and double hung windows. When the springs go, the sash drops on its own or refuses to open past a few inches. This is a fixable mechanical issue, but on windows over 15 years old, replacement is typically the more cost-effective call.
• Visible condensation between panes: Fogging between the glass layers means the insulated glazing unit (IGU) seal has failed. The glass itself isn’t repairable – the sash or full window unit needs replacement. This is one of the most frequent calls we get from homes in Lighthouse Point that were built or renovated in the early 2000s, when lower-cost IGU seals were common.
• Impact code compliance for a renovation or sale: Broward County requires impact-rated windows when you’re pulling a permit for a renovation that touches window openings. If you’re selling and the inspection flags non-impact windows, buyers and lenders frequently require remediation before closing. We carry PGT and CGI impact-rated hung windows that meet Florida Product Approval requirements.
• Original single-pane aluminum frames from the 1970s or 1980s: These are still common in Lighthouse Point’s older stock. Single-pane aluminum conducts heat directly into the home, and the frames themselves corrode in coastal air. Replacing them with a thermally broken, impact-rated unit cuts heat gain significantly – measurable in SHGC (solar heat gain coefficient) ratings, not just in comfort.
• Tilt-in cleaning access on upper floors: For homes with second-story windows above a pool enclosure or covered lanai, exterior cleaning requires a ladder or a service call. A double hung with tilt-in sashes solves that problem. Several homeowners in the Coral Key and Hillsboro neighborhoods have made this switch for exactly that reason.

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Our Single & Double Hung Windows Process

1. Measured Survey – the document you keep. A Sightline technician comes to the opening and takes precise sightline measurements – the visible glass area within the frame – along with rough opening dimensions and frame depth. This document belongs to you. It’s not an internal worksheet; it’s the record of exactly what we found. Under Haven Clause 1 (Have it in writing), the written price on this survey is the price that governs the job.
2. Product specification matched to the opening. Single and double hung windows aren’t interchangeable between all frame types. We match the product to the rough opening, the wall construction (concrete block is standard in Lighthouse Point), the required impact rating, and the U-factor and SHGC values that make sense for a south-facing or west-facing exposure. We’ll tell you which manufacturer line – PGT, CGI, or CWS, depending on the opening – fits the spec, and why.
3. Permit pull and product approval verification. Broward County requires a permit for window replacement on most single-family homes. We pull that permit and verify the Florida Product Approval number for the unit being installed before any glass is ordered. This isn’t optional under the Haven Standard – it’s documented on the job record.
4. Removal and frame preparation. The existing window is removed carefully to avoid damaging the stucco or interior drywall. Concrete block frames common in Lighthouse Point often have a buck (a wood or composite frame set into the block) that needs to be inspected and, if deteriorated, replaced before the new unit goes in. Skipping this step is a common source of call-backs on installations done by less careful crews.
5. Installation, sealing, and hardware verification. The new unit is set, shimmed plumb and level, fastened to the buck or block per manufacturer spec, and sealed with a compatible flashing tape and sealant. On double hung units, both sashes are cycled through their full range of motion and the tilt-in mechanism is tested before we call the opening done.
6. Photo record and walkthrough. Every completed opening gets a documented photo record – before and after, exterior and interior. You receive that record. Haven Clause 4 (Evidence on every job) isn’t optional. The 365-Day Done Right Promise is written on every job: if anything isn’t right within a year of installation, we make it right.

Single & Double Hung Windows Pricing in Lighthouse Point

Single and double hung window replacement in Lighthouse Point typically runs between $480 and $1,400 per opening, installed. That range reflects the real spread between a standard single hung unit in a straightforward concrete block frame and a large, impact-rated double hung in a custom size with a low SHGC coating. Most homeowners replacing standard openings in a 1980s or 1990s Lighthouse Point home land somewhere between $550 and $850 per window installed.

Several variables move the number within those ranges:

• Impact rating: Broward County’s coastal zone effectively requires impact glazing for permitted work. The impact-rated glass unit itself adds cost compared to a non-impact product, but it also eliminates the need for separate hurricane shutters and qualifies for insurance credits that most Lighthouse Point homeowners can document with their carrier.
• Buck condition: If the wood buck in a concrete block frame is soft, deteriorated, or out of square, it needs replacement before the window goes in. We find this on roughly 20-25% of openings in homes built before 1990. The additional cost is itemized on the written survey before any work starts.
• Opening size and configuration: Standard openings in the 24″-by-36″ to 36″-by-48″ range are the most straightforward. Larger openings, especially those over 48″ wide, may require a heavier unit or a mullioned pair, both of which affect price.
• Glass performance spec: A lower SHGC rating (which means more solar heat rejected) costs more but can reduce cooling load measurably in a west-facing room in Lighthouse Point. We’ll give you the numbers and let you decide.
• Project volume: On projects involving five or more openings, the per-window cost typically drops because mobilization, permitting, and crew time are shared across the job.

The written estimate you receive before any work starts is the number. Not a range, not a starting price subject to conditions – the number. Call (754) 600-8907 to schedule a measured survey. Estimates are free, and the document is yours to keep regardless of what you decide.

Key Takeaways

• Single hung windows have one operable sash; double hung windows have two – both options are available in impact-rated configurations meeting Broward County requirements.
• Installed pricing in Lighthouse Point runs from approximately $480 to $1,400 per opening depending on size, configuration, and glass spec.
• Sightline’s measured survey is the written price document – the quote and the invoice are the same number.
• Every job is covered by the 365-Day Done Right Promise and leaves a documented photo record.
• Permits are pulled and Florida Product Approval numbers are verified before any glass is ordered.

FAQs – Single & Double Hung Windows in Lighthouse Point

Do I need impact-rated windows if I’m replacing single or double hung windows in Lighthouse Point?

Yes, in most cases. Broward County requires Florida Product Approval impact-rated windows for permitted replacement work on single-family homes in Lighthouse Point’s coastal building zone. If you’re pulling a permit – which we do on every job – the replacement unit must meet the county’s wind-borne debris requirements. Non-impact windows can still be found in some grandfathered situations, but any new installation we complete is specified to meet current code. Call (754) 600-8907 if you’re unsure what your specific opening requires – we’ll review it during the measured survey at no charge.

How much does a double hung window replacement cost in Lighthouse Point?

A standard double hung window replacement in Lighthouse Point runs between $580 and $850 installed for a typical-sized opening in a concrete block frame. Larger openings, non-standard sizes, or lower SHGC glass specs push the number toward $950 to $1,400. The written estimate you receive from Sightline before any work starts is the final number – not a range, not subject to on-site adjustments. Call (754) 600-8907 to schedule a free measured survey.

What’s the difference between a single hung and double hung window for a coastal home?

For a coastal home in Lighthouse Point, the most practical difference is cleaning access and ventilation control. A double hung’s tilt-in sashes let you clean salt deposits off the exterior glass from inside – which matters when you’re close to the Intracoastal or dealing with prevailing southeast winds that carry salt haze. Single hung windows fix the upper sash permanently, so exterior cleaning requires access from outside. Double hung units also give you the option to open both top and bottom simultaneously, which draws air through a room more efficiently. On impact resistance and wind rating, both configurations are available in equivalent impact-rated products from PGT and CGI. We also offer Awning & Hopper Windows for specialized ventilation needs.

Can you replace just one window, or does Sightline require a minimum project size?

We replace single openings. There’s no minimum project size. That said, the per-window cost on a single replacement is higher than on a multi-window project because permitting, mobilization, and crew time are divided across fewer openings. If you have two or three windows showing similar symptoms – sash balance failures, fogged IGUs, or deteriorated frames – it’s worth having us measure all of them at once and see what the numbers look like across a small batch. The measured survey covers as many openings as you want to include, and it’s free. Call (754) 600-8907 to schedule.

Written by Sonia Raman, Owner at Sightline Windows & Doors Lighthouse Point, serving Lighthouse Point.