The Lowcountry climate is hard on a home’s exterior. Heat and heavy humidity keep AC units running hard for much of the year, and green lawns need constant irrigation. Both of those things are where rust staining starts. An AC condensate line drips down the wall and leaves an orange-brown trail on the siding, or a sprinkler and irrigation system throws iron-laden water against the house and onto the flatwork. Ordinary washing will not lift that kind of staining, no matter how many times you spray it.
That is where a targeted approach makes the difference. As a certified F9 applicator, our crew treats rust staining with F9 BARC, a product made for exactly this, rather than relying on pressure that can etch the surface. We work the stain out with the least product necessary, and at Holy City Hydroshine that careful, chemistry-first method is how we protect what is underneath.
If rust is showing up on your home, we are glad to take a look and tell you honestly what we can do about it. Call us at (843) 729-3095 to get started.
Rust shows up in more than one place around a home, and the F9 process is adapted to each surface we treat.
The usual culprit on siding is AC condensate run-off, one of the most common rust sources on homes in this area. As the line runs, it leaves an orange-brown streak that only darkens with time. We treat it with diluted F9 BARC applied by pump sprayer, not pressure, and let the chemistry lift the stain out of the surface.
Rust often collects on and just below window sills, usually from metal fixtures or run-off working their way down the wall. We spot-treat these with the same F9 process, starting at the gentlest effective concentration so the surface is not overworked.
Rust on poured concrete, driveways, and other flatwork frequently comes from sprinkler heads or metal objects left sitting on the surface. It often turns up alongside the general grime we address during driveway and concrete cleaning, and flatwork staining tends to be more stubborn than staining on siding, so some shadowing can remain even after treatment. We will set that expectation clearly before we begin, so there are no surprises when the work is done.
Sprinkler and irrigation overspray is the other frequent source, where water and the iron dissolved in it hit the house or hardscape and leave staining behind. We treat the surfaces the overspray reaches, then walk you through the sprinkler pattern that caused it, so you know exactly what to adjust before it starts over.
Rust removal is as much about judgment and honesty as it is about the product, and a few things set our approach apart.
Our crew is certified in the F9 process and treats rust with F9 BARC, the professional rust-removal product built for the job. That matters because rust is not something to guess at. Harsh methods and heavy pressure can etch or damage the surface you are trying to save, and the right product applied correctly does the work without that risk.
We start every rust job at a gentle dilution, roughly one part product to two parts water, and work the concentration up only as far as the stain actually requires. The reason is simple: lifting the stain with the least product necessary is what protects the surface underneath. It is the careful way to do the work, and it is the standard we hold on every job.
We give you the full picture before we start. Rust lifts, but it stays gone only when the source that caused it is fixed, and the most stubborn flatwork stains can hold a faint shadow. Knowing that up front means the result lands exactly where we told you it would, and you can make the call with clear information in hand.
F9 BARC is an acid-based product, so protecting everything around the treated area is part of the job, not an afterthought. We protect your property before, during, and after every clean, wetting down plants, covering doorbells, electronics, and fixtures, and applying a neutralizer afterward so nothing is left to burn your landscaping.
It starts with a call or an online booking. Because rust jobs vary so much by surface and severity, we ask for a few photos of the staining, or come take a look on-site, so we can assess the source and the area affected. From there we provide a free estimate, priced by the square footage of the actual staining. If rust is the only service you are booking, we will explain the $300 standalone minimum at this stage so the number is clear from the start.
Once you approve the estimate, the job is booked. You receive a confirmation and a series of reminders leading up to the appointment, then a morning-of text with an ETA so you know when to expect us.
On arrival, we confirm the stained surfaces with you. Then, because F9 BARC is an acid-based product, we wet down the plants and landscaping near the treatment area and cover nearby fixtures, with a neutralizer on hand for afterward.
We apply F9 BARC with a pump sprayer, starting at a gentle dilution of about one part product to two parts water, and let it lift the stain. If the staining needs more, we work the concentration up only as far as necessary to remove it with the least product possible. No pressure washing drives this work; the chemistry does the job.
Once the stain has lifted, we rinse the treated area and apply the neutralizer, so nothing is left behind to harm the surrounding landscaping.
We show you the result and walk you through where the rust came from, whether it traces back to a leaking AC line or a sprinkler reaching the house. Pointing you to the source is a defining part of this service, because fixing it is what keeps the staining from returning.
Rust removal is priced by the amount of staining we treat, not the size of the whole surface, and when it is booked on its own a minimum applies.
The staining itself is lifted, but it will return if the source that caused it is not fixed. We’ll remove as much of the rust staining as possible, but if the source, like a leaking AC line or a sprinkler hitting the house, isn’t addressed, the staining will come back. Fixing the source is the only way to keep it gone. The most common sources we see are AC condensate lines and irrigation or sprinkler overspray, and we will point out the likely culprit during the job so you know what to correct.
Rust staining almost always comes from an iron source near the surface, most often an AC condensate line dripping down the siding or a sprinkler system throwing water, and the dissolved iron in it, onto the house or flatwork. Metal fixtures, railings, or objects left sitting on concrete can leave rust behind as well. Ordinary washing will not lift true rust staining; it needs a targeted rust-removal product, which is exactly what the F9 process uses.
Send us a photo of the staining or have our crew take a look on-site, and we will give you an honest estimate based on the area involved. Homeowners across Summerville count on us to identify the rust, treat it properly, and point them to the source behind it. Call us at (843) 729-3095 and we will get you scheduled.
