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Ameristar Construction in Casselberry, FL | Sawyer Remodel Orlando
We’re Sawyer Remodel Orlando, and we provide independent Ameristar service across Casselberry, FL. We’re not manufacturer-authorized, and we don’t pretend to be. What we are is a crew that has spent years working on Ameristar equipment inside Casselberry’s 1960s-to-1980s slab homes, where high humidity and old construction create problems you won’t find in newer Orlando suburbs. If you need Ameristar work done right in Casselberry, call (850) 809-0306 for a free estimate.
Why Casselberry Residents Choose Us for Ameristar Service
Most HVAC companies treat Ameristar like a budget brand they’ll service if they have to. We treat it as equipment that deserves proper repair, not a sales pitch for a full replacement. Luca Romano, our owner and lead contractor for our General Contractor in Casselberry, got his start in Los Angeles trade school and cut his teeth on Older Florida homes where half the job is fixing what previous contractors got wrong. In Casselberry, that means knowing how a 1976 ranch near Lake Kathryn handles moisture differently than a 2005 build in Oviedo. We show up, diagnose honestly, and put the price in writing before any work starts. That’s how we’ve run every job since 2005.
Styles & brands we work with







Common Ameristar Construction Problems We Solve in Casselberry
- Condenser fan motor failures from humidity and salt air. Casselberry sits close enough to the coast that salt-laden air drifts inland, and older subdivisions with mature tree canopies trap that moisture against condenser units. We replace fan motors with sealed-bearing aftermarket options when OEM lead times would leave you roasting, and with OEM when the system is under warranty.
- Corroded evaporator coils from crawlspace moisture wicking. Slab-on-grade homes in Casselberry often have return plenums that pull damp air from under the house. That moisture eats evaporator coils faster here than in drier parts of Seminole County. We pull the coil, show you the corrosion, and give you a written price for replacement before we touch a single line.
- Start capacitor degradation from summer thunderstorm voltage sags. Casselberry’s afternoon storms cause voltage drops that stress capacitors on older Ameristar M4 series units. A failing cap is a $30 part that can kill a $3,000 compressor if ignored. We check capacitors on every service call, not just when the unit won’t start.
- Frozen coils from undersized return ductwork in unpermitted additions. Homes in the Lake Kathryn and Sausalito areas often have add-on rooms that were never permitted and have undersized or missing return ducts. Your Ameristar system freezes because it can’t breathe. We find the airflow restriction, quote the duct fix, and get your unit running without ice.
- Rooftop package unit failures on mobile homes and duplexes. Casselberry still has a significant stock of older mobile homes and duplexes with legacy Ameristar package units on the roof. Those units fail differently than split systems, and roof access on a 1970s mobile home requires care. We service them, and we also handle the roof work around them.
Ameristar Service in Casselberry: What Local Conditions Mean for Your Equipment
Here’s something most companies won’t tell you about Casselberry: the city’s original building code didn’t require hurricane strapping on roof-to-wall connections until after Hurricane Andrew. That means thousands of homes built in the 1960s through 1980s still lack the roof deck anchors modern code demands. When we install a new Ameristar rooftop package unit or replace a roof, we often find the deck isn’t adequately tied to the framing. You can’t just drop a new unit on a roof that isn’t properly strapped. We upgrade the roof deck anchor points at the curb before we set any equipment. It’s not an upsell. It’s the difference between a unit that stays put in the next tropical storm and one that becomes a projectile.
Ameristar Models & Products We Service in Casselberry
We service the full residential line: Ameristar M4 series split systems (M4AC3 air conditioners, M4HP3 heat pumps), M800 series gas furnaces, and the legacy packaged rooftop units still common on Casselberry’s older mobile homes and duplexes. For compressors and coils, we prefer OEM Ameristar parts to preserve system design tolerances. For capacitors, contactors, and fan motors, we stock high-quality aftermarket options locally so a summer repair doesn’t wait on a warehouse in Texas. If your unit is over 12 years old and the compressor or coil has failed, we’ll give you a straight answer: repair prices versus replacement prices, in writing, same visit. See our full Ameristar sales & service page for what we handle across the metro area.
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AfterAmeristar Service Pricing in Casselberry

You shouldn’t have to call just to learn if a project is in your ballpark. Here are our current ranges for the larger Ameristar-related jobs in Casselberry:
| Service | Price Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Roof Replacement | $8,000 – $20,000 |
The final number depends on roof access, deck condition, ductwork size, and whether your addition was ever permitted. Every estimate includes a written line-item price before work starts. Call (850) 809-0306 to schedule yours.
Serving Casselberry, FL - Our Local Coverage Area
We’re based in the Casselberry area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs – Ameristar Construction in Casselberry
How do Casselberry’s high humidity and afternoon storms affect the lifespan of an Ameristar rooftop unit? They shorten it. Humidity accelerates coil corrosion, and daily thunderstorm voltage dips strain capacitors and contactors. A rooftop unit in Casselberry that gets no maintenance will typically fail five to seven years earlier than an identical unit in a drier climate. Annual coil cleaning and capacitor checks buy back most of that lifespan. Call (850) 809-0306 to schedule an inspection.
If my older Ameristar condenser is still running but leaks R-22, can you top it off? We can, but we won’t pretend it’s a real fix. R-22 is expensive and being phased out, and a system that leaks once will leak again. If your unit is under 12 years old and otherwise solid, we’ll find and repair the leak. If it’s older, we’ll price both the recharge and a replacement so you can decide with real numbers. Call (850) 809-0306 for an estimate.
What’s the biggest challenge when installing a new Ameristar package unit on a Casselberry mobile home or duplex? The roof itself. Many older mobile homes and duplexes lack hurricane strapping and have decking that’s softened from years of Florida rain, which is why Bathroom Remodeling - Casselberry projects often require similar structural assessments. We won’t set a unit on a roof that isn’t structurally sound. We handle the deck repairs and curb upgrades as part of the install, so the work is done in one sequence by one crew.
Can you replace an Ameristar evaporator coil without replacing the condenser, and does that make sense in a humid climate? Yes, replacing just the coil is feasible if the condenser is in good shape. But in Casselberry’s humidity, a mismatched coil and condenser can underperform and freeze. We’ll check airflow and refrigerant matching before recommending a coil-only replacement. If the numbers don’t work, we’ll say so. Call (850) 809-0306 for an assessment.
Do unpermitted additions in Casselberry typically have undersized ductwork that hurts my Ameristar system? Frequently, yes. Additions in Lake Kathryn and Sausalito were often built without permits, with undersized or missing returns. Your system freezes, runs constantly, or never cools the addition. We trace the ductwork, identify the restrictions, and quote the fix in writing. Call (850) 809-0306 to have us look.
Service Areas Near Casselberry
We cover all of Casselberry service area, plus Winter Park, Oviedo, Longwood, and Pine Castle. For jobs closer to downtown, see Ameristar service in Orlando. For the west side of the metro, visit Ameristar service in Winter Park.
Book Your Ameristar Service in Casselberry Today
Call (850) 809-0306 to schedule your free estimate. Luca Romano and our crew will show up on time, put the price in writing, and leave the jobsite clean. Good work doesn’t need a speech – it just needs to hold up.
Written by Luca Romano, Owner at Sawyer Remodel Orlando, serving Casselberry since 2005.











